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How do elements change as you go down a group in the periodic table? A. The average atomic mass decreases. B. The atomic number increases. C. The atoms become more metallic. D. The number of valence electrons
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How do elements change as you go down a group in the periodic table?

A. The average atomic mass decreases.
B. The atomic number increases.
C. The atoms become more metallic.
D. The number of valence electrons increases.

User Danijoo
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1 Answer

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D. The number of valence electrons increases.

User Alihossein Shahabi
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