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Hélium
HéliumStiahnite si aplikáciu Chemistry a zobrazte viac informácií o chemickom prvku:
| Atómové číslo | 2 |
| Skupina | VIIIA |
| Perióda | 1 |
| Hmotnosť | 4.002602 |
| Latinský názov | Helium |
| Elektrónová konfigurácia | 1s2 |
| Oxidačné číslo | 0 |