General Information
| Symbol: | Ca |
| Atomic Number: | 20 |
| Atomic Weight: (Atomic Mass, Molar Mass) | 40.078 |
| Group: | 2 (alkaline earth metals or beryllium family) |
| IIA (Old IUPAC), IIA (CAS) |
| Period: | 4 |
| Block: | s |
Physical Properties
| Density: | 1.55 g/cm3 |
| Atomic Volume: | 29.9 cm2/mole |
| Atomic Radius: | 1.97 angstroms |
| Covalent Radius: | 174 pm |
| Radioactive: | No |
States
| Melting Point: | 839.0 °C |
| Boiling Point: | 1484.0 °C |
| Heat Of Fusion: | 8.53 kJ/mole |
| Heat Of Vaporization: | 154.67 kJ/mole |
Energy
| Electronegativity: | 1.0 (Pauling Scale) |
| Electron Affinity: | -186 kJ/mol |
| 1st Ionization Energy: | 590 kJ/mol |
| Specific Heat Capacity: | 0.647 J g−1 K−1 |
| Thermal Conductivity: | 200.0 W·m−1·K−1 |
Electrons & Oxidation
| Oxidation States: | 2 |
| Electrons Per Shell: | 2 8 8 2 |
| Electron Configuration: | [Ar] 4s2 |
| 1s2 2s2 2p6 3s2 3p6 4s2 |
| 1s2 2s2 2p6 3s2 3p6 4s2 |
History
| Discovered In: | 1808 |
| Discovered By: | Sir Humphrey Davy |
| Discovered At: | England |
| Word Origin: | From the Latin word "calx" meaning "lime" |
Translations
| English | Calcium |
| Deutsch | Kalzium |
| Lëtzebuergesch | Kalzium |
| Nederlands | Calcium |
| Afrikaans | Kalsium |
| Frysk | Kalsium |
| Dansk | Calcium or Kalcium |
| Svenska | Kalcium |
| Norsk | Kalsium |
| Íslenska | Kalsín |
| Føroysk | Kalsium |
| Latin | Calcium |
| Français | Calcium |
| Español | Calcio |
| Catalana | Calci |
| Occitana | Calci |
| Português | Cálcio |
| Galego | Calcio |
| Italiano | Calcio |
| Furlan | Calci |
| Român | Calciu |
| Moldavian | Calciu |
| Armãneashte | Caltsiumu |
| Русский | Кальций |
| Українска | Кальцій |
| by | Кальцый |
| Polska | Wapń |
| Kaszëbsczi | Kalcéń |
| Čech | Vápník |
| Slovenský | Vápník |
| Slovenščina | Kalcij |
| Hrvatska | Kalcij |
| Српски | Калциjум |
| Bosnian | Kalcij |
| Македонски | Калциум |
| Български | Калций |
| Lietuviškai | Kalcis |
| Lao | Kalcijs |
| Sudovian | Kalcijan |
| Cymraeg | Calsiwm |
| Gaeilge na hÉireann | Cailciam |
| Gàidhlig na h | Cailciam |
| Gaelg Vanninagh | Kelkium |
| Cornish | Calcyum |
| Brezhoneg | Kalsiom |
| Ελληνική | Ασβεστιο |
| Shqip | Kalcium |
| Ossetian | Кальций |
| Euskera | Kaltzioa |
| Georgian | კალციუმი |
| Suomi | Kalsium |
| Eesti | Kaltsium |
| Magyar | Kalcium |
| Türkçe | Kalsiyum |
| Kazakh | Кальций |
| Uzbek | Кальций |
| Tajik | Kal'ci' |
| Mongolian | Кальци |
| 日本語 | カルシウム [karushiumu] |
| 中国话 | 鈣 |
| ไทย | แคลเซียม |
| Vietnamese | Canxi |
| Bahasa Melayu | Kalsium |
| العربيه | كلسيوم |
| Il-Malti | Kalsjum |
| עברית | סידן |
| Esperanto | Kalcio |
Links
Misspellings: xalcium, valcium, falcium, dalcium, czlcium, cslcium, cwlcium, cqlcium, cakcium, capcium, caocium, calxium, calvium, calfium, caldium, calcuum, calcjum, calckum, calcoum, calc9um, calc8um, calciym, calcihm, calcijm, calciim, calci8m, calci7m, calciun, calciuk, calciuj, alcium, clcium, cacium, calium, calcum, calcim, calciu, aclcium, clacium, caclium, calicum, calcuim, calcimu, ccalcium, caalcium, callcium, calccium, calciium, calciuum, calciumm
