How many valence electrons does Arsenic have?

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How many valence electrons does Arsenic have?

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Answer 1 · 2014-02-14T23:13:23

Arsenic has 5 valence electrons.

It's electron configuration is #1s^2# #2s^2# #2p^6# #3s^2# #3p^6# #3d^10# #4s^2# #4p^3#. It's outermost shell (4s and 4p) has 5 electrons, these are the valence electrons.

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How many valence electrons does Arsenic have?

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