It seems like you're asking about the atoms that make up the compound Na₂CO₃, which is sodium carbonate.

Here's the breakdown:

* Na (Sodium): There are two sodium atoms (indicated by the subscript "2") in each molecule of sodium carbonate.

* C (Carbon): There is one carbon atom.

* O (Oxygen): There are three oxygen atoms (indicated by the subscript "3").

So, in total, sodium carbonate (Na₂CO₃) is made up of 2 sodium atoms, 1 carbon atom, and 3 oxygen atoms.