When magnesium is ignited in air, the magnesium reacts with oxygen and nitrogen.
the reaction between magnesium and nitrogen is represented by the unbalanced equation below.
mg(s) + n2(g) --> mg3n2(s)
51 balance the equation in your answer booklet for the reaction between magnesium and nitrogen, using the smallest whole-number coefficients. [1]
52 in the ground state, which noble gas has atoms with the same electron configuration as a magnesium ion? [1]
53 explain, in terms of electrons, why an atom of the metal in this reaction forms an ion that has a smaller radius than its atom. [1]