Identify which sets of quantum numbers are valid for an electron. Each set is or

Question

Identify which sets of quantum numbers are valid for an electron. Each set is ordered (n,,m,ms). Check all that apply. Check all that apply. 2,1,-1,-1/2 4,3,2,1/2 2,-1,1,-1/2 3,0,0,1/2 1,1,0,1/2 3,0,0,1/2 3,2,1,0 0,2,0,1/2 4,3,4,-1/2 1,1,0,-1/2 1,2,0,-1/2 3,2,2,1/2 SubmitHintsMy AnswersGive UpReview Part Incorrect; Try Again; 2 attempts remaining Part B Identify the sets of quantum numbers that describe all the electrons in the ground state of a neutral beryllium atom, Be. Each set is ordered (n,,m,ms). Drag the appropriate items to their respective bins.

Explanation / Answer

PART A

The "rules" for the quantum numbers are:
* n is the energy shell: n = 1, 2, ...
* is the subshell, the orbital: = 0, 1, ... n - 1 (s, p, d etc.)
* m is the specific orbital: m = 0, ±1, ... ±
* ms is the electron spin: ms = ±½

a) 2,1,-1,-1/2 = Valid

b) 4,3,2,1/2 = Valid

c) 2,-1,1,-1/2 = Invalid. cannot be negative

d) 3,0,0,1/2 = Valid

e) 1,1,0,1/2 = Invalid. can not be greater than n - 1

f) 3,0,0,1/2 = Valid

g) 3,2,1,0 = Invalid. ms cannot be 0.

h) 0,2,0,1/2 = Invalid. n cannot be 0.

i) 4,3,4,-1/2 = Invalid. m can not be greater than

j) 1,1,0,-1/2 = Invalid. can not be greater than n - 1

k) 1,2,0,-1/2 = Invalid. can not be greater than n - 1

l) 3,2,2,1/2 = Valid

PART B

electron configuration = 1s2, 2s2
1,0,0,+1/2
1,0,0,-1/2
2,0,0,+1/2
2,0,0,-1/2

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