# Helyûm

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| --- |
| Hîdrojen ← **Helyûm** → Lîtyûm
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| — ↑ **He** ↓ Ne
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**2He**
Sîstema vedorî ya elementan |

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| **Şeklê wê** |
|  |
| **Bi tevayî** |
| Nav, direfş, nimre
 | Helyûm, He, 2
 |
| Kom, vedor, blok
 | 18, 1, s
 |
| Cure
 | Gazên giranbiha
 |
| Tîrbûn
 | 0,1785 kg/m3 |
| **Agahî** |
| Giraniya atomê
 | 4,002602 u
 |
| Nîveşkêla kovalansê
 | 28 pm
 |
| Nîveşkêla Van der Waalsê
 | 140 pm
 |
| Rêzbûna elektronan
 | 1s2 |
| Rewşa di germiya odê de
 | gaz
 |
| Xala helînê
 | 0,95 K (-272,2 °C) (2,5 MPa)
 |
| Xala kelînê
 | 4,22 K (-268,93 °C)
 |
| Kabikê molî
 | 21,00 · 10-6 m3/mol
 |
| Derenceya bilindbûnê
 | 0
 |
| Oksîdên xwe
 | tune
 |
| Elektronegatîfî
 | 2,2 (Pauling-Skala)
 |
| **Îzotop** |
|

| Îzo
 | LC
 | t1/2 | ÇA
 | EX MeV
 | ENû
 |
| --- | --- | --- | --- | --- | --- |
| 3He |
0,000137 %

 |  Qayîm |
| 4He | **99,999863** %

 |  Qayîm |
| 5He |
{syn.}

 |  7,618 · 10-22 s  | n | 0,60 | 4He |
| 6He |
{syn.}

 |  806,7 ms  | β- | 3,508 | 6L |

 |
| **Tevdîr girtin** |
| **Nîşanên xeterê** |
|

|  |
| --- |
| *nîşana xeterê tune ne* |

 |

Duration: 1 minute and 1 second.1:01Subtitles available.CCHelyûm
**Helyûm** (bi latînî: Helium, ji bi yewnaniya kevn: Ἥλιος, lat. *Hḗlios* "roj") elementa ku nimroya wê ya atomî 2, siftiya wê 0,13 û di hewayê de kêm peyde dibe. Kurtebêja wê **He** ye.