Why does an atom of argon have zero valency? Explain using the electronic configuration of argon
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Answered by
100
Argon has 18 electrons. They are arranged as 2,8,8. Since 8 electrons fill the valence shell, its valency is 0.(8 - 8)
Answered by
78
The electronic configuration of argon is 2,8,8. The outermost shell has 8 electrons so there is no need to gain or loose electrons to make it octet(i.e.8 shells in the outermost shell). Hence its valency is 0.
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