What happens when a sodium atom loses an electron in its outer energy
o
a. it becomes a negative ion
o
b. it has an increase in the number of protons.
o
c. it has an increase in the number of neutrons.
o dit becomes a positive ion.

The correct option is D) it becomes a positive ion.

Explanation:

The third shell of the sodium atom has one valence electron. In order to become stable, the sodium atom tends to lose its valence electron so that a stable configuration can be achieved. When a sodium atom loses an electron, the number of protons in the nucleus becomes greater than the number of electrons as one electron has been lost. As a result, the sodium atom becomes a positively charged ion with + 1 charge.

layer 3 is younger than layer 6.