One mole is defined as ________ September 21, 2022 by 8i9x6 the number of particles equal to the number of atoms in exactly 12 g of carbon-12. the number of particles equal to the number of atoms in exactly 16 g of oxygen-16. exactly 6.02 11eaa952_9c3b_8511_ae90_dfe69ffa158f_TB3835_11 F1F1F1S1F1F1F1010S1U1P122S1S1P0 particles. the number of particles equal to the number of atoms in exactly 1 g of hydrogen-1. the number of particles equal to the number of atoms in exactly 1 kg of carbon in a vault at the National Bureau of Standards. See Answer the number of particles equal to the number of atoms in exactly 12 g of carbon-12.