Answer is: total number of atoms in C₁₂H₂₂N₂O₈S₂ are 46. In molecule C₁₂H₂₂N₂O₈S₂ thera are twelve carbon atoms (C₁₂), twenty-two hydrogen atoms (H₂₂), two nitrogen atoms (N₂), eight oxygen atoms (O₈) and two sulfur atoms (S₂). 12 + 22 + 2 + 8 + 2 = 46.