Helium
By: Mason Hocker- block 1
3 physical properties
1. Melting Point- -272.2 C
2. Boiling Point- - 268.93 C
3.. Liquid range- 3.27 K
3 uses/ compounds
1. Hot air Balloon
2. Balloon
3. Shielding gas for arc welding
There are 2 protons. 2 electrons and 2 isotopes
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