1. Understand the Formula

* MgSO₄: This is the chemical formula for magnesium sulfate. It tells us each molecule contains:

* 1 magnesium atom (Mg)

* 1 sulfur atom (S)

* 4 oxygen atoms (O)

2. Calculate Atoms per Molecule

* Total atoms per molecule of MgSO₄ = 1 + 1 + 4 = 6 atoms

3. Account for the Coefficient

* 4MgSO₄: The coefficient "4" means we have 4 molecules of MgSO₄.

* Total atoms = (atoms per molecule) * (number of molecules)

* Total atoms = 6 atoms/molecule * 4 molecules = 24 atoms

Therefore, there are 24 atoms in 4MgSO₄.