General Information
| Symbol: | K |
| Atomic Number: | 19 |
| Atomic Weight: (Atomic Mass, Molar Mass) | 39.0983 |
| Group: | 1 (alkali metals or hydrogen family/lithium family) |
| IA (Old IUPAC), IA (CAS) |
| Period: | 4 |
| Block: | s |
Physical Properties
| Density: | 0.86 g/cm3 |
| Atomic Volume: | 45.3 cm2/mole |
| Atomic Radius: | 2.35 angstroms |
| Covalent Radius: | 196 pm |
| Radioactive: | No |
States
| Melting Point: | 63.25 °C |
| Boiling Point: | 760.0 °C |
| Heat Of Fusion: | 2.33 kJ/mole |
| Heat Of Vaporization: | 76.9 kJ/mole |
Energy
| Electronegativity: | 0.8 (Pauling Scale) |
| Electron Affinity: | -48 kJ/mol |
| 1st Ionization Energy: | 419 kJ/mol |
| Specific Heat Capacity: | 0.757 J g−1 K−1 |
| Thermal Conductivity: | 102.5 W·m−1·K−1 |
Electrons & Oxidation
| Oxidation States: | 1 |
| Electrons Per Shell: | 2 8 8 1 |
| Electron Configuration: | [Ar] 4s1 |
| 1s2 2s2 2p6 3s2 3p6 4s1 |
| 1s2 2s2 2p6 3s2 3p6 4s1 |
History
| Discovered In: | 1807 |
| Discovered By: | Sir Humphrey Davy |
| Discovered At: | England |
| Word Origin: | From the English word "potash" (pot ashes) and the Arabic word "qali" meaning alkali (the origin of the symbol K comes from the Latin word "kalium") |
Translations
| English | Potassium |
| Deutsch | Kalium |
| Lëtzebuergesch | Kalium |
| Nederlands | Kalium |
| Afrikaans | Kalium |
| Frysk | Kalium |
| Dansk | Kalium |
| Svenska | Kalium |
| Norsk | Kalium |
| Íslenska | Kalín |
| Føroysk | Kalium |
| Latin | Kalium |
| Français | Potassium |
| Español | Potasio |
| Catalana | Potassi |
| Occitana | Potassi |
| Português | Potássio |
| Galego | Potasio |
| Italiano | Potassio |
| Furlan | Potassi |
| Român | Potasiu (ro²: Kaliu) |
| Moldavian | Potasiu (ro²: Kaliu) |
| Armãneashte | Caliumu |
| Русский | Калий |
| Українска | Калій |
| by | Калій |
| Polska | Potas |
| Kaszëbsczi | Kali |
| Čech | Draslík |
| Slovenský | Draslík |
| Slovenščina | Kalij |
| Hrvatska | Kalij |
| Српски | Калиjум |
| Bosnian | Kalij |
| Македонски | Калиум |
| Български | Калий |
| Lietuviškai | Kalis |
| Lao | Kālijs |
| Sudovian | Kalijan |
| Cymraeg | Potasiwm |
| Gaeilge na hÉireann | Potaisiam |
| Gàidhlig na h | Potaisiam |
| Gaelg Vanninagh | Potashum |
| Cornish | Calyum |
| Brezhoneg | Potasiom |
| Ελληνική | Καλιο |
| Shqip | Kalium |
| Ossetian | Калий |
| Euskera | Potasioa |
| Georgian | კალიუმი |
| Suomi | Kalium |
| Eesti | Kaalium |
| Magyar | Kálium |
| Türkçe | Potasyum |
| Kazakh | Калий |
| Uzbek | Калий |
| Tajik | Kali' |
| Mongolian | Кали |
| 日本語 | カリウム [kariumu] |
| 中国话 | 鉀 |
| ไทย | โพแทสเซียม |
| Vietnamese | Kali |
| Bahasa Melayu | Kalium |
| العربيه | بوتاسيوم |
| Il-Malti | Potassjum |
| עברית | אשלגן |
| Esperanto | Kalio |
Links
Misspellings: ootassium, lotassium, -otassium, 0otassium, pitassium, pktassium, pltassium, pptassium, p0tassium, p9tassium, porassium, pofassium, pogassium, poyassium, po6assium, po5assium, potzssium, potsssium, potwssium, potqssium, potaasium, potazsium, potaxsium, potadsium, potaesium, potawsium, potasaium, potaszium, potasxium, potasdium, potaseium, potaswium, potassuum, potassjum, potasskum, potassoum, potass9um, potass8um, potassiym, potassihm, potassijm, potassiim, potassi8m, potassi7m, potassiun, potassiuk, potassiuj, otassium, ptassium, poassium, potssium, potasium, potasium, potassum, potassim, potassiu, optassium, ptoassium, poatssium, potsasium, potassium, potasisum, potassuim, potassimu, ppotassium, pootassium, pottassium, potaassium, potasssium, potasssium, potassiium, potassiuum, potassiumm
