The Total solution for NCERT class 6-12
Molecularmass of N2 = 28g28g of N2 representmolecules = 6.022 × 10231.4 g of N2 representmolecules = 6.022 × 1023 × 1.4g =3.011 × 1022Atomic number of nitrogen (N) = 71 molecule of N2 haselectrones = 7 × 2 = 143.011 × 1022 molecules of N2 have electrons = 4 ×3.011 × 1022 = 4.215 × 1023 electrons