Which statement is true of the electronic configurations of a family in the periodic table?
A) The number of valence electrons is not equal to the group number.
B) The number of valence electrons is equal to the group number.
C) The valence electrons are always paired.
D) The valence electrons are never paired.

Question

Quizplus · Accepted Answer

The electronic configuration of a family in the periodic table is characterized by the number of valence electrons in the outermost shell of their atoms, which is equal to the group number. Therefore, statement B is true. The valence electrons are not always paired (statement C is false) and can be paired or unpaired (statement D is false). Statement A is also false because the number of valence electrons is indeed equal to the group number.

Which Statement Is True of the Electronic Configurations of a Family