Answer:
There would be three Lithium atoms per one Nitrogen atom.
3:1
Li3N (Lithium Nitride)
Explanation:
Group 15 elements usually have 5 valence electrons, and every atom wants to have a full valence shell of valence electrons. So, nitrogen can get three electrons from each Lithium atom in order to get a full octet.
Answer:
Part 1:sodium
rubidium
Part 2: protons neutrons and electrons are all 12
The number of protons is equal to the no. of neutrons from the electronic arrangement of magnesium and the no. of electrons is got from the atomic no. of magnesium
Answer:- 30 moles of oxygen are required if 12 moles of
are consumed.
Solution:- The given balanced equation is:

From this balanced equation, there is 2:5 mol ratio between
and
.
We are asked to calculate the moles of
required to react with 12 moles of
.
It's a mol to mol conversion and the set up for this would be as:

= 
So, 30 moles of oxygen are required to react with 12 moles of
.