(iii) The atomic masses of sulphur (S), oxygen (O), and helium (He) are approximately 32, 16, and 4 respectively. Which of the following statements regarding the number of atoms in 32 g of sulphur, 16 g of oxygen, and 4 g of helium is correct? P. 16 g of oxygen contains four times the number of atoms as 4 g of helium. Q. 16 g of oxygen contains half the number of atoms as 32 g of sulphur. (a) only P (b) only Q (c) both P and Q (d) neither P nor Q
