The number of valence electrons of a representative element is related to which of the following?
A)atomic number
B)atomic weight
C)group number
D)period number

Question

Quizplus · Accepted Answer

The number of valence electrons of a representative element is related to the group number because group number refers to the number of valence electrons in the outermost shell of an element's atom. For example, all elements in Group 1 have 1 valence electron, while all elements in Group 7 have 7 valence electrons. Atomic number and atomic weight do not determine the number of valence electrons, and while period number can provide some information about the number of electron shells an element has, it does not directly relate to the number of valence electrons.

The Number of Valence Electrons of a Representative Element Is