How many pairs of electrons are shared in a double bond?
A. 1
B. 2.
C. 3
D. 4

B. 2

Explanation:

A double covalent bond is where two pairs of electrons are shared between the atoms rather than just one pair

B

A Double bond is when two atoms share two pairs of electrons with each other. It is depicted by two horizontal lines between two atoms in a molecule

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.