Question

50. The correct set of four quantum numbers for the
19th electron of gallium (At.no = 31) is
(1) 4,0, 0, +1/2
(2) 4,1,0,+1/2

(3) 5,0,0,+1/2
(4) 5,1, 0, +1/2​

Answer 1

Answer:

option 1

Explanation:

the 19th electron is in 4s¹ so n=4, l=0, m=0, s=+1/2