Question

Give the set of four quantum numbers that represent the last electron added (using the Aufbau principle) to the Zn atom. n = 4,1 = 6 mj = 0, ms -- n = 3,1 = 2, mi = 2, ms = + n = 3,1 = 2, mi = 2, m = - n = 3,1 = 1, m1 = 1, ms = n = 4, 1 = 3, mi = 3, ms = +

Answer 1

Electronic configuration of Zn : [Ar] 4s2 3d10

the last electron is added in 3d

so n = principal quantum number hence n = 3 (for last electron)

orbital is d hence l = 2

m will have values from -l to +l hence it will be between -2 to + 2 so from the option it is +2

andd spin of last electron will be down hence s = -1/2

so for the last electron OPTION 3 IS CORRECT

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