how many atoms are there altogether in a molecule of sodium sulfate?

A molecule of sodium sulfate (Na2SO4) contains 7 atoms in total. This includes:

• 2 sodium (Na) atoms
• 1 sulfur (S) atom
• 4 oxygen (O) atoms

Adding these together gives 2+1+4=72+1+4=72+1+4=7 atoms in one molecule of sodium sulfate.