Q.

For the configuration 1s22s1, the quantum numbers for the outermost electron are

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

2, 1, 0, –1/2

b

2, 0, 0, +1/2

c

2, 1, 0, +1/2

d

2, 0, 1, +1/2

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

1s22s1n=2, for s - orbital, l = 0, thus "m" must be zero  and s = ±1/2
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
For the configuration 1s22s1, the quantum numbers for the outermost electron are