How many atoms are there in Li2CO3?

Lithium carbonate (Li2CO3) consists of three types of atoms: lithium (Li), carbon (C), and oxygen (O). Specifically, there are 2 lithium atoms, 1 carbon atom, and 3 oxygen atoms in each molecule of Li2CO3. Therefore, the total number of atoms in one formula unit of lithium carbonate is 2 + 1 + 3 = 6 atoms.