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]

Question

Chemistry

Justine Mckee

14 February, 16:38

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]

+3

Answers (1)

Know the Answer?

Raphael Norris · Answer 1

51: The only coefficient is in the first one i think and it would be a 3

52: Neon (Ne)

53: Mg has a low nuclear charge so all it's electrons would be lost in the electron shell, making the ion smaller than the atom.