Nitrogen family - 5 valence electrons

Explanation:

Families are group of elements that belong to the same column in the periodic table.

Some families have a well known name. For instance, alkali metals is the family of the elements that belong to the first column: Li, Na, K, Rb, Cs, and Fr (H is an exception, in spite it is in the first column it does not belong to the alkali metals family because it is a nonmetal). Other well known families are alkaline earth metals (column 2), halogens (column 3), and noble gases (column 18).

All the members of a family have the same number of valence electrons, i.e. electrons in the outermost shell.

The other members fo this family with the electron configuration of the outermost shell are:

a. a clone will be physically identical to the original, but won’t be genetically identical

have a good day!

dynamic equilibrium is the answer.