I need help wit number 7 and 8

What is the most stable monatomic ion formed from nitrogen

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Write a balanced equation showing the formation of copper (ii) nitrite from its elements