Question

1. which atom gains electrons during the formation of magnesium sulfide, shown in this equation? ·mg + :s· → mg²⁺ + :s:²⁻

Explanation:

Step1: Understand oxidation - reduction concept

In a chemical reaction, the atom that gains electrons is reduced.

Step2: Analyze magnesium and sulfur

Magnesium (Mg) starts as a neutral atom and forms a $Mg^{2 + }$ ion by losing 2 electrons. Sulfur (S) starts as a neutral atom and forms a $S^{2 - }$ ion by gaining 2 electrons.

Answer:

:$\ddot{S}\cdot$