Symbol | He |
---|---|
Atomic Number | 2 |
Atomic Weight | 4.002602 |
Group |
18 (noble gases or helium family/neon family)
VIII (IUPAC), VIIIA (CAS)
Gas, Diamagnetic, Noble Gas, Nonmetal, Stable, Natural
|
Period | 1 |
Block | s |
Density | 0.0001785 g/cm3 |
---|---|
Atomic Volume | 31.8 cm3/mole |
Atomic Radius | -- |
Covalent Radius | 32 pm |
Crust Abundance | 5.5E-7% |
Crystal Structure | Hexagonal |
Color | Colorless |
Melting Point | -272.2 °C |
---|---|
Boiling Point | -268.9 °C |
Heat of Fusion | 0.021 kJ/mol |
Heat of Vaporization | 0.0845 kJ/mol |
Electronegativity | (Pauling Scale) |
---|---|
Electron Affinity | 0 kJ/mol |
1st Ionization Energy | 2377 kJ/mol |
2. Ionization Energy | 5250.5 kJ/mol |
Specific Heat Capacity | 5.193 J g−1 K−1 |
Thermal Conductivity | 0.152 W·m−1·K−1 |
Oxidation States | 0 |
---|---|
Electrons Per Shell | 2 |
Electron Configuration | 1s2 |
Orbital Diagram
1s ↿⇂ |
Radioactive | No |
---|
Afrikaans | Helium | |
Aragonese | Elio | |
العربية | هيليوم | |
Armãneashte | Heliumu | |
asturianu | Heliu | |
azərbaycan dili | Helium | |
български | Хелий | |
বাংলা | হিলিয়াম | |
brezhoneg | Heliom | |
bosanski | Helij[um] | |
Byelorussian | Гелій | |
Cebuano | Helio | |
čeština | Helium | |
Chuvash | Гели | |
Cymraeg | Heli | |
dansk | Helium | |
Deutsch | Helium | |
Ελληνικά | Ήλιον | |
English | Helium | |
esperanto | Helio | |
español | Hélio | |
eesti | Heelium | |
euskara | Helioa | |
فارسی | هلیم | |
suomi | Helium | |
føroyskt | Helium | |
français | Hélium | |
furlan | Eli | |
West-Frysk | Helium | |
Gaeilge | Héiliam | |
Gàidhlig | Hèiliam | |
galego | Helio | |
ગુજરાતી | હીલિયમ | |
Gaelg | Hailium | |
Hakka Chinese | Hoi (氦) | |
עברית | הליום | |
हिन्दी | हिलियम | |
hrvatski | Helij | |
magyar | Hélium | |
հայերեն | Հելիում | |
Indonesia | Helium | |
íslenska | Helín | |
italiano | Elio | |
日本語 | ヘリウム | |
ქართული | ჰელიუმი | |
کٲشُر | Él | |
қазақ тілі | Гелий | |
한국어 | 헬륨 | |
Kurdish | Hêlyûm | |
Komi | Гелий | |
kernewek | Helyum | |
кыргызча | Гелий | |
Latin | Helium | |
Lëtzebuergesch | Helium | |
Lombard | Éli | |
lingála | Eliyúmu | |
lietuvių | Helis | |
latviešu | Hēlijs | |
Mari | Гелий | |
Maori | Haumāmā | |
македонски | Хелиум | |
മലയാളം | ഹീലിയം | |
монгол | Гели | |
Мокшан | Гели | |
Bahasa Melayu | Helium | |
Malti | Ħiljum, ²Elju | |
Nahuatl | Tōnatiuyoh | |
Nederlands | Helium | |
norsk | Helium | |
Occitan | Eli | |
ирон | Гелий | |
polski | Hel | |
português | Hélio | |
Runasimi | Ilyu | |
română | Heliu | |
русский | Гелий | |
slovenčina | Hélium | |
slovenščina | Helij | |
Samoan | Helimi | |
Samogitian | Helis | |
shqip | Helium | |
српски | Хелијум | |
Southern Sotho | Heliamo | |
svenska | Helium | |
Kiswahili | Heli | |
தமிழ் | ஹீலியம் | |
Tajik | Гелий | |
ไทย | ฮีเลียม | |
Türkçe | Helyum | |
ئۇيغۇرچە | گېلىي | |
українська | Гелій | |
o‘zbek | Geliy | |
Tiếng Việt | Heli | |
Võro | Heelium | |
中文 | 氦 |