In the ground state, all atoms of Group 15 elements have the same number of(1) valence electrons (

January 2018 NY Regents Chemistry Exam

4 In the ground state, all atoms of Group 15 elements have the same number of (1) valence electrons

(2) electron shells

(3) neutrons (4) protons

Solution: All atoms of elements that belong to the same group must have the same number of valence electrons.

Answer: 1

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