Question

I need this ASAP :-(

The group number corresponds to _________________________.

A. Number of shells
B. Number of valence electrons
C. Atomic number
D. Atomic mass
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Answer 1

B

Step-by-step explanation:

Group number corresponds to number of valence electrons, atomic number corresponds to number of protons and period number corresponds to number of shells

Answer 2

B is the correct answer I think