contestada

Choose the letter of the choice that best completes the statement or answers the question.
Elements in the same group have the same __________.
a.
atomic radius.
c.
nuclear charge.
b.
energy level of outer electrons.
d.
number of valence electrons.

Respuesta :

Answer:

b energy level of outer electrons

Explanation:

This is because their atoms have the same number of electron in the highest occupied energy level.

D number of valence electrons