2 Points Which element has the fewest valence electrons?
A. Magnesium (Mg)
B. Neon (Ne)
C. Chlorine (CI)
O D. Silicon (Si)
SUSNE

Explanation:

As the elements go left in the periodic table, they have fewer valence electrons.

Magnesium has 2 valence electrons.

Neon has 8 valence electrons.

Chorine has 7 valence electrons.

Silicon has 4 valence electrons.

Magnesium has the fewest valence electrons.

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