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Science: The Atom

Helium
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Helium

Name: Helium
 
Symbol: He

Atomic Number: 2

Atomic Mass: 4 g/mol

Classification: Non-Metal

Group Name: Noble/Inert Gases

Group: 8A

Period: 1

The Helium atom has 2 electrons (e-) and 2 protons (p+) and 2 neutrons (n0). As shown  in the diagram bellow.

he.jpg

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