Helium waa qaybta labaad ee ugu fudud iyo tan labaad ee ugu badan ee dunida la arki karo.
Eeg astaamaha
| Atomic mass | 4.0026 u |
| Cidhiidhi | 0.0001785 g/cm³ |
| Natiijooyinka | 0.95 K |
| Natiijooyinka | 4.22 K |
| Muuqaalka | Gaas aan midab lahayn |
| Xaaladda heerkulka qolka | Gaas |
Eegista
| 1st Ionization | 2372.3 kJ/mol |
| Istaraatiijiyad | -48.0 kJ/mol |
| Nidaamka | 0 |
_Cusub:
| Nidaamka | 1s2 |
| Awooda | 31.0 pm |
| Xaraf | 28.0 pm |
| Van der Waals | 140.0 pm |
Dib u eegista
| La Ogaaday | Pierre Janssen, Joseph Norman Lockyer |
| Sannadka la helay | 1868 |
| _Meel | Guntur, Hindiya / London, Ingiriiska |
| Magacaabista | Giriigga 'helios' oo macnaheedu yahay qorraxda |
_Warbixinta Helium
Helium waa mid aan midab lahayn, aan dhadhan lahayn, oo aan waxtar lahayn oo ah gaas monoatomic ah oo ah madaxa silsiladda gaaska sharaf leh. Waxay leedahay heerkulka ugu hooseeya ee dhammaan waxyaabaha ku jira 4.22 K oo kaliya ayaa la isku dhejin karaa iyadoo la isticmaalayo cadaadis. Helium waxaa lagu abuuray dhulka iyada oo la adeegsanayo radioactive alpha burburka waxyaabaha culus. Waxaa markii ugu horeysay lagu ogaaday spectroscopically qorraxda ka hor inta aan la helin dhulka.
Barnaamijyada
Cryogenics, mashiinada MRI, balloons xisbiga, badda-dheer ku shubista gaaska isku darka, ogaanshaha shidma, iyo soosaarka semiconductor.
Xaqiiqo xiiso leh
Helium waa qaybta kaliya ee la helay hawada ka hor inta aan la helin dhulka, markii ugu horeysay ee la arkay iftiinka qorraxda inta lagu jiro qorraxda ee 1868.
Isotoobyo
| Tirada | Tirada | Half-Life | Xasiloon |
| 3 | 0.00000134% | - | Haa |
| 4 | 0.99999866% | - | Haa |
Nidaamka
1s2