1. Understand the Formula:

* Li₂O represents one molecule of lithium oxide.

* Li stands for lithium, and O stands for oxygen.

* The subscript "2" after Li indicates that there are two lithium atoms in each molecule.

2. Calculate Atoms per Molecule:

* One molecule of Li₂O contains 2 lithium atoms + 1 oxygen atom = 3 atoms.

3. Account for the Coefficient:

* The coefficient "4" in front of Li₂O indicates that there are 4 molecules of lithium oxide.

4. Calculate Total Atoms:

* 4 molecules of Li₂O * 3 atoms per molecule = 12 atoms

Therefore, there are 12 atoms in 4Li₂O.