How many valence electrons are in an atom of magnesium? (atomic number 12)?

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asked Jul 23, 2018 38.3k views

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Llamositopia · Answer 1 · 2018-07-28T07:40:21+0000

As magnesium has atomic number 12 it's electronic configuration is 2,8,2 in the K,L,M shells.Thus as we can see it has 2 electrons in the outermost shell hence, it has 2 valence electrons.

How many valence electrons are in an atom of magnesium? (atomic number 12)?

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