Question

satisfying the octet rule
how many additional electrons does this atom of oxygen need in its valence shell to satisfy the octet rule?
two four
six eight

Explanation:

Step1: Identify valence electrons

Oxygen has 6 valence electrons (from the diagram, the outer shell has 6 electrons).

Step2: Apply octet rule

The octet rule requires 8 valence electrons. Calculate the deficit: $8 - 6 = 2$

Answer:

two