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Element ______ has 2 valence electrons and is in period 4.

Element ______ has 2 valence electrons and is in period 4.
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Element ______ has 2 valence electrons and is in period 4.

User Dilum Ranatunga
by
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1 Answer

2 votes

Answer:

Calcium

2.8.8.2

last energy she'll got 2 electrons

as 2 valency

User Roger Nelson
by
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