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What is common to all elements in the same group on the periodic table? Their properties are very different.

A.They have the same number of neutrons.
B.They have the same number of valence electrons.
C. They are all nonmetals.

2 Answers

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B. They have the same number of valence
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User Billious
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Hello,

B.They have the same number of valence electrons.
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User Joaocandre
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