Maximum number of electrons possible with n = 4, m = -2 are

n = 4, l = 0 and n = 4 , l = 1 cannot have m = -2 ;Thus n = 4, l = 3  m = -3, -2, -1, 0, +1, +2, +3n = 4, l = 2  m =  -2, -1, 0, +1, +2n = 4, l = 3,  m = -2. . . . ‘2’ electrons ;n = 4, l = 2, m = -2. . .. . ‘2’ electrons ;