Chemistry: Chapter 8 Problems – Flashcards
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Identify which sets of quantum numbers are valid for an electron. Each set is ordered (n,ℓ,mℓ,ms).
Check all that apply.
3,2,-2,1/2
1,-1,-1,-1/2
0,2,1,-1/2
1,2,0,1/2
1,0,0,-1/2
4,2,1,1/2
3,2,1,-1
4,3,-4,1/2
3,1,-1,1/2
2,0,0,-1/2
3,3,-1,1/2
2,3,1,1/2
answer
3,2,-2,1/2
1,0,0,-1/2
4,2,1,1/2
3,1,-1,1/2
2,0,0,-1/2
question
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,ℓ,mℓ,ms).
answer
Electrons in Be:
1,0,0,1/2
1,0,0,-1/2
2,0,0,-1/2
2,0,0,1/2
Electrons not in Be:
2,1,-1,1/2
2,1,0,-1/2
2,1,0,1/2
2,1,-1,-1/2
question
Give the complete ground-state electron configuration for silicon (Si).
answer
1s^2 2s^2 2p^6 3s^2 3p^2
question
Give the ground-state electron configuration for silicon (Si) using noble-gas shorthand.
answer
[Ne] 3s^2 3p^2
question
Give the actual ground-state electron configuration for copper (Cu) using the complete form.
answer
1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^10
question
Give the ground-state electron configuration for copper (Cu) using noble-gas shorthand.
answer
[Ar] 4s^1 3d^10
question
Condensed electron configuration of bismuth (Bi).
answer
[Xe]4f^14 5d^10 6s^2 6p^3
question
Condensed electron configuration of iodine (I).
answer
5s^2 4d^10 5p^5
question
List a possible set of four quantum numbers (n, ℓ, mℓ, ms) in order, for the highest energy electron in gallium (Ga).
answer
4, 1, 1, 1/2
or 4, 1, 1, -1/2
question
How many orbitals are there in the third shell (n=3)?
answer
9
