Helium ndiyo yakanyanya kuwanikwa uye yakanyanya kuomarara yezvinyorwa zvepasi rose.
Maitiro ekushandisa
| Atomic radius: | 4.0026 u |
| Kuomarara | 0.0001785 g/cm³ |
| Kutonhora Point | 0.95 K |
| Kutonhora Point | 4.22 K |
| Kuoneka | Inotonhora |
| State at Room Temp | Gas |
Chemical zvinhu
| 1st Ionization Energy | 2372.3 kJ/mol |
| Electronegativity: | -48.0 kJ/mol |
| Oxygen | 0 |
Atomic Properties
| Kuisa Kugadzirisa | 1s2 |
| Atomic radius: | 31.0 pm |
| Covalent Radius | 28.0 pm |
| Van der Waals radius | 140.0 pm |
Discovery
| Yakawanikwa ne | Pierre Janssen, Joseph Norman Lockyer |
| Kuonekwa kwegore | 1868 |
| _Panzvimbo: | Guntur, India / London, England |
| Akapihwa zita mushure me | ChiGreek 'helios' chinoreva zuva |
Nezve Helium
Helium inonziwo helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium, helium
Mashandisiro & Maapplication
Cryogenics, MRI michina, party mabhaloni, deep-sea diving gasi michina, kubuda kuongorora, uye semiconductor kugadzira.
Nhoroondo yemitambo
Helium ndiyo chete chinhu chakawanikwa mupasi pevhu, ichionekwa pakutanga mumifananidzo yezuva panguva yezuva-kupisa mu1868.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 3 | 0.00000134% | - | _Ndiani |
| 4 | 0.99999866% | - | _Ndiani |
Kuisa Kugadzirisa
1s2