| Letter | Decimal | Binary | Ternary | Hex | NATO | Morse | Braille | Semaphore | Nautical | Pigpen | ASL |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 1 | 00001 | 001 | 01 | Alfa | · − | ![]() |
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| B | 2 | 00010 | 002 | 02 | Bravo | − · · · | ![]() |
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| C | 3 | 00011 | 010 | 03 | Charlie | − · − · | ![]() |
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| D | 4 | 00100 | 011 | 04 | Delta | − · · | ![]() |
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| E | 5 | 00101 | 012 | 05 | Echo | · | ![]() |
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| F | 6 | 00110 | 020 | 06 | Foxtrot | · · − · | ![]() |
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| G | 7 | 00111 | 021 | 07 | Golf | − − · | ![]() |
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| H | 8 | 01000 | 022 | 08 | Hotel | · · · · | ![]() |
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| I | 9 | 01001 | 100 | 09 | India | · · | ![]() |
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| J | 10 | 01010 | 101 | 0A | Juliett | · − − − | ![]() |
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| K | 11 | 01011 | 102 | 0B | Kilo | − · − | ![]() |
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| L | 12 | 01100 | 110 | 0C | Lima | · − · · | ![]() |
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| M | 13 | 01101 | 111 | 0D | Mike | − − | ![]() |
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| N | 14 | 01110 | 112 | 0E | November | − · | ![]() |
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| O | 15 | 01111 | 120 | 0F | Oscar | − − − | ![]() |
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| P | 16 | 10000 | 121 | 10 | Papa | · − − · | ![]() |
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| Q | 17 | 10001 | 122 | 11 | Quebec | − − · − | ![]() |
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| R | 18 | 10010 | 200 | 12 | Romeo | · − · | ![]() |
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| S | 19 | 10011 | 201 | 13 | Sierra | · · · | ![]() |
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| T | 20 | 10100 | 202 | 14 | Tango | − | ![]() |
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| U | 21 | 10101 | 210 | 15 | Uniform | · · − | ![]() |
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| V | 22 | 10110 | 211 | 16 | Victor | · · · − | ![]() |
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| W | 23 | 10111 | 212 | 17 | Whiskey | · − − | ![]() |
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| X | 24 | 11000 | 220 | 18 | X-ray | − · · − | ![]() |
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| Y | 25 | 11001 | 221 | 19 | Yankee | − · − − | ![]() |
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| Z | 26 | 11010 | 222 | 1A | Zulu | − − · · | ![]() |
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| Decimal | Letter | Binary | Ternary | Hex | NATO | Morse | Braille | Pigpen | Semaphore | Nautical |
| Flag | State | Abbreviation | Capital | Nickname |
|---|---|---|---|---|
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Alabama | AL | Montgomery | The Yellowhammer State |
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Alaska | AK | Juneau | The Last Frontier |
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Arizona | AZ | Phoenix | The Grand Canyon State |
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Arkansas | AR | Little Rock | The Natural State |
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California | CA | Sacramento | The Golden State |
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Colorado | CO | Denver | The Centennial State |
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Connecticut | CT | Hartford | The Constitution State |
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Delaware | DE | Dover | The First State |
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Florida | FL | Tallahassee | The Sunshine State |
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Georgia | GA | Atlanta | The Peach State |
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Hawaii | HI | Honolulu | The Aloha State |
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Idaho | ID | Boise | The Gem State |
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Illinois | IL | Springfield | Land of Lincoln |
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Indiana | IN | Indianapolis | The Hoosier State |
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Iowa | IA | Des Moines | The Hawkeye State |
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Kansas | KS | Topeka | The Sunflower State |
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Kentucky | KY | Frankfort | The Bluegrass State |
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Louisiana | LA | Baton Rouge | The Pelican State |
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Maine | ME | Augusta | The Pine Tree State |
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Maryland | MD | Annapolis | The Old Line State |
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Massachusetts | MA | Boston | The Bay State |
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Michigan | MI | Lansing | The Great Lakes State |
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Minnesota | MN | Saint Paul | The North Star State |
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Mississippi | MS | Jackson | The Magnolia State |
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Missouri | MO | Jefferson City | The Show Me State |
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Montana | MT | Helena | The Treasure State |
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Nebraska | NE | Lincoln | The Cornhusker State |
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Nevada | NV | Carson City | The Silver State |
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New Hampshire | NH | Concord | The Granite State |
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New Jersey | NJ | Trenton | The Garden State |
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New Mexico | NM | Santa Fe | The Land of Enchantment |
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New York | NY | Albany | The Empire State |
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North Carolina | NC | Raleigh | The Tar Heel State |
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North Dakota | ND | Bismarck | The Peace Garden State |
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Ohio | OH | Columbus | The Buckeye State |
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Oklahoma | OK | Oklahoma City | The Sooner State |
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Oregon | OR | Salem | The Beaver State |
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Pennsylvania | PA | Harrisburg | The Keystone State |
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Rhode Island | RI | Providence | The Ocean State |
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South Carolina | SC | Columbia | The Palmetto State |
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South Dakota | SD | Pierre | Mount Rushmore State |
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Tennessee | TN | Nashville | The Volunteer State |
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Texas | TX | Austin | The Lone Star State |
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Utah | UT | Salt Lake City | The Beehive State |
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Vermont | VT | Montpelier | The Green Mountain State |
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Virginia | VA | Richmond | The Old Dominion State |
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Washington | WA | Olympia | The Evergreen State |
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West Virginia | WV | Charleston | The Mountain State |
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Wisconsin | WI | Madison | The Badger State |
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Wyoming | WY | Cheyenne | The Equality State |
| Flag | State | Abbreviation | Capital | Nickname |
| COUNTRY | A2 (ISO) | A3 (UN) | NUM (UN) | DIALING CODE | Flag |
|---|---|---|---|---|---|
| Afghanistan | AF | AFG | 4 | 93 | ![]() |
| Albania | AL | ALB | 8 | 355 | ![]() |
| Algeria | DZ | DZA | 12 | 213 | ![]() |
| American Samoa | AS | ASM | 16 | 1-684 | ![]() |
| Andorra | AD | AND | 20 | 376 | ![]() |
| Angola | AO | AGO | 24 | 244 | ![]() |
| Anguilla | AI | AIA | 660 | 1-264 | ![]() |
| Antarctica | AQ | ATA | 10 | 672 | ![]() |
| Antigua and Barbuda | AG | ATG | 28 | 1-268 | ![]() |
| Argentina | AR | ARG | 32 | 54 | ![]() |
| Armenia | AM | ARM | 51 | 374 | ![]() |
| Aruba | AW | ABW | 533 | 297 | ![]() |
| Australia | AU | AUS | 36 | 61 | ![]() |
| Austria | AT | AUT | 40 | 43 | ![]() |
| Azerbaijan | AZ | AZE | 31 | 994 | ![]() |
| Bahamas | BS | BHS | 44 | 1-242 | ![]() |
| Bahrain | BH | BHR | 48 | 973 | ![]() |
| Bangladesh | BD | BGD | 50 | 880 | ![]() |
| Barbados | BB | BRB | 52 | 1-246 | ![]() |
| Belarus | BY | BLR | 112 | 375 | ![]() |
| Belgium | BE | BEL | 56 | 32 | ![]() |
| Belize | BZ | BLZ | 84 | 501 | ![]() |
| Benin | BJ | BEN | 204 | 229 | ![]() |
| Bermuda | BM | BMU | 60 | 1-441 | ![]() |
| Bhutan | BT | BTN | 64 | 975 | ![]() |
| Bolivia | BO | BOL | 68 | 591 | ![]() |
| Bonaire | BQ | BES | 535 | 599 | ![]() |
| Bosnia and Herzegovina | BA | BIH | 70 | 387 | ![]() |
| Botswana | BW | BWA | 72 | 267 | ![]() |
| Bouvet Island | BV | BVT | 74 | 47 | ![]() |
| Brazil | BR | BRA | 76 | 55 | ![]() |
| British Indian Ocean Territory | IO | IOT | 86 | 246 | ![]() |
| Brunei Darussalam | BN | BRN | 96 | 673 | ![]() |
| Bulgaria | BG | BGR | 100 | 359 | ![]() |
| Burkina Faso | BF | BFA | 854 | 226 | ![]() |
| Burundi | BI | BDI | 108 | 257 | ![]() |
| Cambodia | KH | KHM | 116 | 855 | ![]() |
| Cameroon | CM | CMR | 120 | 237 | ![]() |
| Canada | CA | CAN | 124 | 1 | ![]() |
| Cape Verde | CV | CPV | 132 | 238 | ![]() |
| Cayman Islands | KY | CYM | 136 | 1-345 | ![]() |
| Central African Republic | CF | CAF | 140 | 236 | ![]() |
| Chad | TD | TCD | 148 | 235 | ![]() |
| Chile | CL | CHL | 152 | 56 | ![]() |
| China | CN | CHN | 156 | 86 | ![]() |
| Christmas Island | CX | CXR | 162 | 61 | ![]() |
| Cocos (Keeling) Islands | CC | CCK | 166 | 61 | ![]() |
| Colombia | CO | COL | 170 | 57 | ![]() |
| Comoros | KM | COM | 174 | 269 | ![]() |
| Congo | CG | COG | 178 | 242 | ![]() |
| Democratic Republic of the Congo | CD | COD | 180 | 243 | ![]() |
| Cook Islands | CK | COK | 184 | 682 | ![]() |
| Costa Rica | CR | CRI | 188 | 506 | ![]() |
| Croatia | HR | HRV | 191 | 385 | ![]() |
| Cuba | CU | CUB | 192 | 53 | ![]() |
| Curacao | CW | CUW | 531 | 599 | ![]() |
| Cyprus | CY | CYP | 196 | 357 | ![]() |
| Czech Republic | CZ | CZE | 203 | 420 | ![]() |
| Cote d'Ivoire | CI | CIV | 384 | 225 | ![]() |
| Denmark | DK | DNK | 208 | 45 | ![]() |
| Djibouti | DJ | DJI | 262 | 253 | ![]() |
| Dominica | DM | DMA | 212 | 1-767 | ![]() |
| Dominican Republic | DO | DOM | 214 | 1-809,1-829,1-849 | ![]() |
| Ecuador | EC | ECU | 218 | 593 | ![]() |
| Egypt | EG | EGY | 818 | 20 | ![]() |
| El Salvador | SV | SLV | 222 | 503 | ![]() |
| Equatorial Guinea | GQ | GNQ | 226 | 240 | ![]() |
| Eritrea | ER | ERI | 232 | 291 | ![]() |
| Estonia | EE | EST | 233 | 372 | ![]() |
| Ethiopia | ET | ETH | 231 | 251 | ![]() |
| Falkland Islands (Malvinas) | FK | FLK | 238 | 500 | ![]() |
| Faroe Islands | FO | FRO | 234 | 298 | ![]() |
| Fiji | FJ | FJI | 242 | 679 | ![]() |
| Finland | FI | FIN | 246 | 358 | ![]() |
| France | FR | FRA | 250 | 33 | ![]() |
| French Guiana | GF | GUF | 254 | 594 | ![]() |
| French Polynesia | PF | PYF | 258 | 689 | ![]() |
| French Southern Territories | TF | ATF | 260 | 262 | ![]() |
| Gabon | GA | GAB | 266 | 241 | ![]() |
| Gambia | GM | GMB | 270 | 220 | ![]() |
| Georgia | GE | GEO | 268 | 995 | ![]() |
| Germany | DE | DEU | 276 | 49 | ![]() |
| Ghana | GH | GHA | 288 | 233 | ![]() |
| Gibraltar | GI | GIB | 292 | 350 | ![]() |
| Greece | GR | GRC | 300 | 30 | ![]() |
| Greenland | GL | GRL | 304 | 299 | ![]() |
| Grenada | GD | GRD | 308 | 1-473 | ![]() |
| Guadeloupe | GP | GLP | 312 | 590 | ![]() |
| Guam | GU | GUM | 316 | 1-671 | ![]() |
| Guatemala | GT | GTM | 320 | 502 | ![]() |
| Guernsey | GG | GGY | 831 | 44 | ![]() |
| Guinea | GN | GIN | 324 | 224 | ![]() |
| Guinea-Bissau | GW | GNB | 624 | 245 | ![]() |
| Guyana | GY | GUY | 328 | 592 | ![]() |
| Haiti | HT | HTI | 332 | 509 | ![]() |
| Heard Island and McDonald Islands | HM | HMD | 334 | 672 | ![]() |
| Holy See (Vatican City State) | VA | VAT | 336 | 379 | ![]() |
| Honduras | HN | HND | 340 | 504 | ![]() |
| Hong Kong | HK | HKG | 344 | 852 | ![]() |
| Hungary | HU | HUN | 348 | 36 | ![]() |
| Iceland | IS | ISL | 352 | 354 | ![]() |
| India | IN | IND | 356 | 91 | ![]() |
| Indonesia | ID | IDN | 360 | 62 | ![]() |
| Iran, Islamic Republic of | IR | IRN | 364 | 98 | ![]() |
| Iraq | IQ | IRQ | 368 | 964 | ![]() |
| Ireland | IE | IRL | 372 | 353 | ![]() |
| Isle of Man | IM | IMN | 833 | 44 | ![]() |
| Israel | IL | ISR | 376 | 972 | ![]() |
| Italy | IT | ITA | 380 | 39 | ![]() |
| Jamaica | JM | JAM | 388 | 1-876 | ![]() |
| Japan | JP | JPN | 392 | 81 | ![]() |
| Jersey | JE | JEY | 832 | 44 | ![]() |
| Jordan | JO | JOR | 400 | 962 | ![]() |
| Kazakhstan | KZ | KAZ | 398 | 7 | ![]() |
| Kenya | KE | KEN | 404 | 254 | ![]() |
| Kiribati | KI | KIR | 296 | 686 | ![]() |
| Korea, Democratic People's Republic of | KP | PRK | 408 | 850 | ![]() |
| Korea, Republic of | KR | KOR | 410 | 82 | ![]() |
| Kuwait | KW | KWT | 414 | 965 | ![]() |
| Kyrgyzstan | KG | KGZ | 417 | 996 | ![]() |
| Lao People's Democratic Republic | LA | LAO | 418 | 856 | ![]() |
| Latvia | LV | LVA | 428 | 371 | ![]() |
| Lebanon | LB | LBN | 422 | 961 | ![]() |
| Lesotho | LS | LSO | 426 | 266 | ![]() |
| Liberia | LR | LBR | 430 | 231 | ![]() |
| Libya | LY | LBY | 434 | 218 | ![]() |
| Liechtenstein | LI | LIE | 438 | 423 | ![]() |
| Lithuania | LT | LTU | 440 | 370 | ![]() |
| Luxembourg | LU | LUX | 442 | 352 | ![]() |
| Macao | MO | MAC | 446 | 853 | ![]() |
| Macedonia, the Former Yugoslav Republic of | MK | MKD | 807 | 389 | ![]() |
| Madagascar | MG | MDG | 450 | 261 | ![]() |
| Malawi | MW | MWI | 454 | 265 | ![]() |
| Malaysia | MY | MYS | 458 | 60 | ![]() |
| Maldives | MV | MDV | 462 | 960 | ![]() |
| Mali | ML | MLI | 466 | 223 | ![]() |
| Malta | MT | MLT | 470 | 356 | ![]() |
| Marshall Islands | MH | MHL | 584 | 692 | ![]() |
| Martinique | MQ | MTQ | 474 | 596 | ![]() |
| Mauritania | MR | MRT | 478 | 222 | ![]() |
| Mauritius | MU | MUS | 480 | 230 | ![]() |
| Mayotte | YT | MYT | 175 | 262 | ![]() |
| Mexico | MX | MEX | 484 | 52 | ![]() |
| Micronesia, Federated States of | FM | FSM | 583 | 691 | ![]() |
| Moldova, Republic of | MD | MDA | 498 | 373 | ![]() |
| Monaco | MC | MCO | 492 | 377 | ![]() |
| Mongolia | MN | MNG | 496 | 976 | ![]() |
| Montenegro | ME | MNE | 499 | 382 | ![]() |
| Montserrat | MS | MSR | 500 | 1-664 | ![]() |
| Morocco | MA | MAR | 504 | 212 | ![]() |
| Mozambique | MZ | MOZ | 508 | 258 | ![]() |
| Myanmar | MM | MMR | 104 | 95 | ![]() |
| Namibia | NA | NAM | 516 | 264 | ![]() |
| Nauru | NR | NRU | 520 | 674 | ![]() |
| Nepal | NP | NPL | 524 | 977 | ![]() |
| Netherlands | NL | NLD | 528 | 31 | ![]() |
| New Caledonia | NC | NCL | 540 | 687 | ![]() |
| New Zealand | NZ | NZL | 554 | 64 | ![]() |
| Nicaragua | NI | NIC | 558 | 505 | ![]() |
| Niger | NE | NER | 562 | 227 | ![]() |
| Nigeria | NG | NGA | 566 | 234 | ![]() |
| Niue | NU | NIU | 570 | 683 | ![]() |
| Norfolk Island | NF | NFK | 574 | 672 | ![]() |
| Northern Mariana Islands | MP | MNP | 580 | 1-670 | ![]() |
| Norway | NO | NOR | 578 | 47 | ![]() |
| Oman | OM | OMN | 512 | 968 | ![]() |
| Pakistan | PK | PAK | 586 | 92 | ![]() |
| Palau | PW | PLW | 585 | 680 | ![]() |
| Palestine, State of | PS | PSE | 275 | 970 | ![]() |
| Panama | PA | PAN | 591 | 507 | ![]() |
| Papua New Guinea | PG | PNG | 598 | 675 | ![]() |
| Paraguay | PY | PRY | 600 | 595 | ![]() |
| Peru | PE | PER | 604 | 51 | ![]() |
| Philippines | PH | PHL | 608 | 63 | ![]() |
| Pitcairn | PN | PCN | 612 | 870 | ![]() |
| Poland | PL | POL | 616 | 48 | ![]() |
| Portugal | PT | PRT | 620 | 351 | ![]() |
| Puerto Rico | PR | PRI | 630 | 1 | ![]() |
| Qatar | QA | QAT | 634 | 974 | ![]() |
| Romania | RO | ROU | 642 | 40 | ![]() |
| Russian Federation | RU | RUS | 643 | 7 | ![]() |
| Rwanda | RW | RWA | 646 | 250 | ![]() |
| Reunion | RE | REU | 638 | 262 | ![]() |
| Saint Barthelemy | BL | BLM | 652 | 590 | ![]() |
| Saint Helena | SH | SHN | 654 | 290 | ![]() |
| Saint Kitts and Nevis | KN | KNA | 659 | 1-869 | ![]() |
| Saint Lucia | LC | LCA | 662 | 1-758 | ![]() |
| Saint Martin (French part) | MF | MAF | 663 | 590 | ![]() |
| Saint Pierre and Miquelon | PM | SPM | 666 | 508 | ![]() |
| Saint Vincent and the Grenadines | VC | VCT | 670 | 1-784 | ![]() |
| Samoa | WS | WSM | 882 | 685 | ![]() |
| San Marino | SM | SMR | 674 | 378 | ![]() |
| Sao Tome and Principe | ST | STP | 678 | 239 | ![]() |
| Saudi Arabia | SA | SAU | 682 | 966 | ![]() |
| Senegal | SN | SEN | 686 | 221 | ![]() |
| Serbia | RS | SRB | 688 | 381 | ![]() |
| Seychelles | SC | SYC | 690 | 248 | ![]() |
| Sierra Leone | SL | SLE | 694 | 232 | ![]() |
| Singapore | SG | SGP | 702 | 65 | ![]() |
| Sint Maarten (Dutch part) | SX | SXM | 534 | 1-721 | ![]() |
| Slovakia | SK | SVK | 703 | 421 | ![]() |
| Slovenia | SI | SVN | 705 | 386 | ![]() |
| Solomon Islands | SB | SLB | 90 | 677 | ![]() |
| Somalia | SO | SOM | 706 | 252 | ![]() |
| South Africa | ZA | ZAF | 710 | 27 | ![]() |
| South Georgia and the South Sandwich Islands | GS | SGS | 239 | 500 | ![]() |
| South Sudan | SS | SSD | 728 | 211 | ![]() |
| Spain | ES | ESP | 724 | 34 | ![]() |
| Sri Lanka | LK | LKA | 144 | 94 | ![]() |
| Sudan | SD | SDN | 729 | 249 | ![]() |
| Suriname | SR | SUR | 740 | 597 | ![]() |
| Svalbard and Jan Mayen | SJ | SJM | 744 | 47 | ![]() |
| Swaziland | SZ | SWZ | 748 | 268 | ![]() |
| Sweden | SE | SWE | 752 | 46 | ![]() |
| Switzerland | CH | CHE | 756 | 41 | ![]() |
| Syrian Arab Republic | SY | SYR | 760 | 963 | ![]() |
| Taiwan | TW | TWN | 158 | 886 | ![]() |
| Tajikistan | TJ | TJK | 762 | 992 | ![]() |
| United Republic of Tanzania | TZ | TZA | 834 | 255 | ![]() |
| Thailand | TH | THA | 764 | 66 | ![]() |
| Timor-Leste | TL | TLS | 626 | 670 | ![]() |
| Togo | TG | TGO | 768 | 228 | ![]() |
| Tokelau | TK | TKL | 772 | 690 | ![]() |
| Tonga | TO | TON | 776 | 676 | ![]() |
| Trinidad and Tobago | TT | TTO | 780 | 1-868 | ![]() |
| Tunisia | TN | TUN | 788 | 216 | ![]() |
| Turkey | TR | TUR | 792 | 90 | ![]() |
| Turkmenistan | TM | TKM | 795 | 993 | ![]() |
| Turks and Caicos Islands | TC | TCA | 796 | 1-649 | ![]() |
| Tuvalu | TV | TUV | 798 | 688 | ![]() |
| Uganda | UG | UGA | 800 | 256 | ![]() |
| Ukraine | UA | UKR | 804 | 380 | ![]() |
| United Arab Emirates | AE | ARE | 784 | 971 | ![]() |
| United Kingdom | GB | GBR | 826 | 44 | ![]() |
| United States | US | USA | 840 | 1 | ![]() |
| United States Minor Outlying Islands | UM | UMI | 581 | 1 | ![]() |
| Uruguay | UY | URY | 858 | 598 | ![]() |
| Uzbekistan | UZ | UZB | 860 | 998 | ![]() |
| Vanuatu | VU | VUT | 548 | 678 | ![]() |
| Venezuela | VE | VEN | 862 | 58 | ![]() |
| Viet Nam | VN | VNM | 704 | 84 | ![]() |
| British Virgin Islands | VG | VGB | 92 | 1-284 | ![]() |
| US Virgin Islands | VI | VIR | 850 | 1-340 | ![]() |
| Wallis and Futuna | WF | WLF | 876 | 681 | ![]() |
| Western Sahara | EH | ESH | 732 | 212 | ![]() |
| Yemen | YE | YEM | 887 | 967 | ![]() |
| Zambia | ZM | ZMB | 894 | 260 | ![]() |
| Zimbabwe | ZW | ZWE | 716 | 263 | ![]() |
| Atomic Number | Symbol | Element | Atomic weight | Subcategory | Group | Period |
|---|---|---|---|---|---|---|
| 1 | H | Hydrogen | 1.008 | Reactive nonmental | 1 | 1 |
| 2 | He | Helium | 4.002602(2) | Noble gas | 18 | 1 |
| 3 | Li | Lithium | 6.94 | Alkali metal | 1 | 2 |
| 4 | Be | Beryllium | 9.0121831(5) | Alkaline earth metal | 2 | 2 |
| 5 | B | Boron | 10.81 | Metalloid | 13 | 2 |
| 6 | C | Carbon | 12.011 | Reactive nonmental | 14 | 2 |
| 7 | N | Nitrogen | 14.007 | Reactive nonmental | 15 | 2 |
| 8 | O | Oxygen | 15.999 | Reactive nonmental | 16 | 2 |
| 9 | F | Fluorine | 18.998403163(6) | Reactive nonmental | 17 | 2 |
| 10 | Ne | Neon | 20.1797(6) | Noble gas | 18 | 2 |
| 11 | Na | Sodium | 22.98976928(2) | Alkali metal | 1 | 3 |
| 12 | Mg | Magnesium | 24.305 | Alkaline earth metal | 2 | 3 |
| 13 | Al | Aluminium | 26.9815384(3) | Post-transition metal | 13 | 3 |
| 14 | Si | Silicon | 28.085 | Metalloid | 14 | 3 |
| 15 | P | Phosphorus | 30.973761998(5) | Reactive nonmental | 15 | 3 |
| 16 | S | Sulfur | 32.06 | Reactive nonmental | 16 | 3 |
| 17 | Cl | Chlorine | 35.45 | Reactive nonmental | 17 | 3 |
| 18 | Ar | Argon | 39.948 | Noble gas | 18 | 3 |
| 19 | K | Potassium | 39.0983(1) | Alkali metal | 1 | 4 |
| 20 | Ca | Calcium | 40.078(4) | Alkaline earth metal | 2 | 4 |
| 21 | Sc | Scandium | 44.955908(5) | Transition metal | 3 | 4 |
| 22 | Ti | Titanium | 47.867(1) | Transition metal | 4 | 4 |
| 23 | V | Vanadium | 50.9415(1) | Transition metal | 5 | 4 |
| 24 | Cr | Chromium | 51.9961(6) | Transition metal | 6 | 4 |
| 25 | Mn | Manganese | 54.938043(2) | Transition metal | 7 | 4 |
| 26 | Fe | Iron | 55.845(2) | Transition metal | 8 | 4 |
| 27 | Co | Cobalt | 58.933194(3) | Transition metal | 9 | 4 |
| 28 | Ni | Nickel | 58.6934(4) | Transition metal | 10 | 4 |
| 29 | Cu | Copper | 63.546(3) | Transition metal | 11 | 4 |
| 30 | Zn | Zinc | 65.38(2) | Post-transition metal | 12 | 4 |
| 31 | Ga | Gallium | 69.723(1) | Post-transition metal | 13 | 4 |
| 32 | Ge | Germanium | 72.630(8) | Metalloid | 14 | 4 |
| 33 | As | Arsenic | 74.921595(6) | Metalloid | 15 | 4 |
| 34 | Se | Selenium | 78.971(8) | Reactive nonmental | 16 | 4 |
| 35 | Br | Bromine | 79.904 | Reactive nonmental | 17 | 4 |
| 36 | Kr | Krypton | 83.798(2) | Noble gas | 18 | 4 |
| 37 | Rb | Rubidium | 85.4678(3) | Alkali metal | 1 | 5 |
| 38 | Sr | Strontium | 87.62(1) | Alkaline earth metal | 2 | 5 |
| 39 | Y | Yttrium | 88.90584(1) | Transition metal | 3 | 5 |
| 40 | Zr | Zirconium | 91.224(2) | Transition metal | 4 | 5 |
| 41 | Nb | Niobium | 92.90637(1) | Transition metal | 5 | 5 |
| 42 | Mo | Molybdenum | 95.95(1) | Transition metal | 6 | 5 |
| 43 | Tc | Technetium | [98] | Transition metal | 7 | 5 |
| 44 | Ru | Ruthenium | 101.07(2) | Transition metal | 8 | 5 |
| 45 | Rh | Rhodium | 102.90549(2) | Transition metal | 9 | 5 |
| 46 | Pd | Palladium | 106.42(1) | Transition metal | 10 | 5 |
| 47 | Ag | Silver | 107.8682(2) | Transition metal | 11 | 5 |
| 48 | Cd | Cadmium | 112.414(4) | Post-transition metal | 12 | 5 |
| 49 | In | Indium | 114.818(1) | Post-transition metal | 13 | 5 |
| 50 | Sn | Tin | 118.710(7) | Post-transition metal | 14 | 5 |
| 51 | Sb | Antimony | 121.760(1) | Metalloid | 15 | 5 |
| 52 | Te | Tellurium | 127.60(3) | Metalloid | 16 | 5 |
| 53 | I | Iodine | 126.90447(3) | Reactive nonmental | 17 | 5 |
| 54 | Xe | Xenon | 131.293(6) | Noble gas | 18 | 5 |
| 55 | Cs | Caesium | 132.90545196(6) | Alkali metal | 1 | 6 |
| 56 | Ba | Barium | 137.327(7) | Alkaline earth metal | 2 | 6 |
| 57 | La | Lanthanum | 138.90547(7) | Lanthanide | 3 | 6 |
| 58 | Ce | Cerium | 140.116(1) | Lanthanide | 6 | |
| 59 | Pr | Praseodymium | 140.90766(1) | Lanthanide | 6 | |
| 60 | Nd | Neodymium | 144.242(3) | Lanthanide | 6 | |
| 61 | Pm | Promethium | [145] | Lanthanide | 6 | |
| 62 | Sm | Samarium | 150.36(2) | Lanthanide | 6 | |
| 63 | Eu | Europium | 151.964(1) | Lanthanide | 6 | |
| 64 | Gd | Gadolinium | 157.25(3) | Lanthanide | 6 | |
| 65 | Tb | Terbium | 158.925354(8) | Lanthanide | 6 | |
| 66 | Dy | Dysprosium | 162.500(1) | Lanthanide | 6 | |
| 67 | Ho | Holmium | 164.930328(7) | Lanthanide | 6 | |
| 68 | Er | Erbium | 167.259(3) | Lanthanide | 6 | |
| 69 | Tm | Thulium | 168.934218(6) | Lanthanide | 6 | |
| 70 | Yb | Ytterbium | 173.045(10) | Lanthanide | 6 | |
| 71 | Lu | Lutetium | 174.9668(1) | Lanthanide | 6 | |
| 72 | Hf | Hafnium | 178.49(2) | Transition metal | 4 | 6 |
| 73 | Ta | Tantalum | 180.94788(2) | Transition metal | 5 | 6 |
| 74 | W | Tungsten | 183.84(1) | Transition metal | 6 | 6 |
| 75 | Re | Rhenium | 186.207(1) | Transition metal | 7 | 6 |
| 76 | Os | Osmium | 190.23(3) | Transition metal | 8 | 6 |
| 77 | Ir | Iridium | 192.217(2) | Transition metal | 9 | 6 |
| 78 | Pt | Platinum | 195.084(9) | Transition metal | 10 | 6 |
| 79 | Au | Gold | 196.966570(4) | Transition metal | 11 | 6 |
| 80 | Hg | Mercury | 200.592(3) | Post-transition metal | 12 | 6 |
| 81 | Tl | Thallium | 204.38 | Post-transition metal | 13 | 6 |
| 82 | Pb | Lead | 207.2(1) | Post-transition metal | 14 | 6 |
| 83 | Bi | Bismuth | 208.98040(1) | Post-transition metal | 15 | 6 |
| 84 | Po | Polonium | [209] | Post-transition metal | 16 | 6 |
| 85 | At | Astatine | [210] | Metalloid | 17 | 6 |
| 86 | Rn | Radon | [222] | Noble gas | 18 | 6 |
| 87 | Fr | Francium | [223] | Alkali metal | 1 | 7 |
| 88 | Ra | Radium | [226] | Alkaline earth metal | 2 | 7 |
| 89 | Ac | Actinium | [227] | Actinide | 3 | 7 |
| 90 | Th | Thorium | 232.0377(4) | Actinide | 7 | |
| 91 | Pa | Protactinium | 231.03588(1) | Actinide | 7 | |
| 92 | U | Uranium | 238.02891(3) | Actinide | 7 | |
| 93 | Np | Neptunium | [237] | Actinide | 7 | |
| 94 | Pu | Plutonium | [244] | Actinide | 7 | |
| 95 | Am | Americium | [243] | Actinide | 7 | |
| 96 | Cm | Curium | [247] | Actinide | 7 | |
| 97 | Bk | Berkelium | [247] | Actinide | 7 | |
| 98 | Cf | Californium | [251] | Actinide | 7 | |
| 99 | Es | Einsteinium | [252] | Actinide | 7 | |
| 100 | Fm | Fermium | [257] | Actinide | 7 | |
| 101 | Md | Mendelevium | [258] | Actinide | 7 | |
| 102 | No | Nobelium | [259] | Actinide | 7 | |
| 103 | Lr | Lawrencium | [266] | Actinide | 7 | |
| 104 | Rf | Rutherfordium | [267] | Transition metal | 4 | 7 |
| 105 | Db | Dubnium | [268] | Transition metal | 5 | 7 |
| 106 | Sg | Seaborgium | [269] | Transition metal | 6 | 7 |
| 107 | Bh | Bohrium | [270] | Transition metal | 7 | 7 |
| 108 | Hs | Hassium | [270] | Transition metal | 8 | 7 |
| 109 | Mt | Meitnerium | [278] | Unknown chemical properties | 9 | 7 |
| 110 | Ds | Darmstadtium | [281] | Unknown chemical properties | 10 | 7 |
| 111 | Rg | Roentgenium | [282] | Unknown chemical properties | 11 | 7 |
| 112 | Cn | Copernicium | [285] | Post-transition metal | 12 | 7 |
| 113 | Nh | Nihonium | [286] | Unknown chemical properties | 13 | 7 |
| 114 | Fl | Flerovium | [289] | Unknown chemical properties | 14 | 7 |
| 115 | Mc | Moscovium | [290] | Unknown chemical properties | 15 | 7 |
| 116 | Lv | Livermorium | [293] | Unknown chemical properties | 16 | 7 |
| 117 | Ts | Tennessine | [294] | Unknown chemical properties | 17 | 7 |
| 118 | Og | Oganesson | [294] | Unknown chemical properties | 18 | 7 |