Helium
| Element Name | Helium |
|---|---|
| Symbol | He |
| Atomic Number | 2 |
| Group | Noble Gas |
| Crystal Structure | Hexagonal |
| Atomic Mass | 4.002602 |
| Electronic Configuration | 2 |
| Orbital Configuration | 1s2 |
| Valency | 0 |
| Melting Point | -272.2°C @ 26 atmos. |
| Boiling Point | -268.934°C |
| Electo-negativity | 0 |
| Covalent Radius | 0.93 Å |
