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Which of the following Noble Gases has only 2 valence electrons because it only has 1 energy level?

Helium (He)
Neon (Ne)
Argon (Ar)
Krypton (Kr)

User ShibbyUK
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1 Answer

5 votes

Answer:

it is he

Step-by-step explanation:

beacuse Noble gases have 2 volence

User Igrinis
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