Question

given a formula of oxygen what is the total number of electrons shared between the atoms represented in the formula. a 4 b 6 c 2 d 8

Explanation:

Step1: Analyze oxygen - oxygen bond

The oxygen - oxygen bond in $O = O$ is a double bond.

Step2: Recall electron - sharing in double bond

In a double bond, 2 pairs of electrons are shared. Since 1 pair is 2 electrons, 2 pairs mean 4 electrons are shared.

Answer:

A. 4