Which is the correct lewis dot diagram for nitrogen?

c

Explanation:

The five dot represent the five valence electrons of nitrogen.

Valence electrons are the electrons that form chemical bonds with other elements. The number of valence electrons of Nitrogen is gotten by looking at the group nitrogen belongs to, Nitrogen belongs to group 5

Next create a square around nitrogen, then place one of the valence electron on each side of the square, the last electron is placed beside any of the other electrons.

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.