20.What do carbon and silicon have in common?
a. They belong to the same column (family), therefore they have the same number of valence electrons.
b. They belong to the same column (family), therefore they have the same number of total electrons.
c. They belong to the same column (family), therefore they have the same number of energy levels.
d. They belong to the same column (family), therefore they have the same number of protons.
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20.What do carbon and silicon have in common?
a. They belong to the same column (family), therefore...
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