The similar chemical behavior of the elements in a given group in the periodic table is best accounted for by the fact that atoms of these elements have:
A)the same number of isotopes
B)the same number of electrons
C)the same number of electrons in the outermost (valence)shell
D)similar nuclear structures
E)the same number of protons

Question

Quizplus · Accepted Answer

Elements in the same group of the periodic table have the same number of valence electrons, which determines their chemical behavior. As a result, they tend to form similar compounds and have similar reactions.

The Similar Chemical Behavior of the Elements in a Given