Question

how many atoms of magnesium (mg) are in the compound: * magnesium peroxide mgo₂ 1 atom 2 atoms 3 atoms

Explanation:

Step1: Analyze the chemical formula

The chemical formula of magnesium peroxide is \(MgO_2\).

Step2: Determine the number of magnesium atoms

In the formula \(MgO_2\), the sub - script of \(Mg\) is \(1\) (when no sub - script is written, it is assumed to be \(1\)). So, there is 1 magnesium atom in one formula unit of magnesium peroxide.

Answer:

1 atom