Atom counter
Enter your formula to check the number of atoms. Remember to use uppercase and lowercase on the name of athoms appropriately!
Example: Mg{OH}2 (magnesium hydroxide) has one atom of magnesium, two atoms of oxygen and two atoms of hydrogen. K4[ON(SO3)2]2 (Fremy's salt) has four atoms of potasium, 14 atoms of oxygen, two atoms of nitrogen and four atoms of sulfur.