Diketahui nomor atom Cu = 29, Ga = 31, Se = 34, dan Sr = 38. Tentukan keempat bilangan kuantum terakhir untuk ion-ion Cu2+, Ga3+, Se2-, dan Sr2+

29Cu2+ = (n = 3, l = 2,m = 0, s = - 1/2)

31 Ga 3+ = (n = 3, l = 2, m = 1, s = - 1/2)

34 Se2- = (n = 4, l = 1, m = 1, s = - 1/2)

38Sr2+ = (n = 4, l = 1, m = -1, s = -1/2)