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Helium
HeliumLataa kemian sovellus nähdäksesi lisätietoja kemiallisesta alkuaineesta:
| Järjestysluku | 2 |
| Ryhmä | VIIIA |
| Jakso | 1 |
| Massa | 4.002602 |
| Latinalainen nimi | Helium |
| Elektronikonfiguraatio | 1s2 |
| Hapetustila | 0 |