Question

how many atoms of oxygen (o) 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: Identify the number of oxygen atoms

In the formula \(MgO_2\), the sub - script of \(O\) (oxygen) is \(2\). This sub - script indicates the number of oxygen atoms in one formula unit of the compound. So, there are 2 oxygen atoms.

Answer:

2 atoms