Quantum Numbers

# Quantum Numbers - Quantum Numbers Orbitals ConcepTest Which...

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Quantum Numbers: Orbitals 10/15/2015 ° ConcepTest ° ° Which orbital has the quantum numbers: ° M1 =1+ , l=+1, n=4 ° ° A:4s ° B.4p ° C.4d ° D.4f ° E.3d ° F. None of these ° ° Idea: Electron Quantum Numbers ° ° 2. What are acceptable quantum numbers (n,l,m respectively) for a 4d orbital? ° ° A. n=3, l=4; m=0 ° B.n=3; l=3; m=-1 ° C.n=4; l=3; m=-1 ° D.n=4; l=2; m=0 ° E. n=4; l=1; m=+1 ° F. none of these ° ° Which two orbitals have the same value for n+l ? °

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° A. 2s,2p ° B. 2s,3s ° C. 2p,3p ° D. 2p,3s ° E. 3p, 3d ° F. none of these ° ° Electron Assignments ° Aufbau Principle: fill vacant orbital of lowest energy

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Unformatted text preview: Assign to subshell in order of increasing “n+l” value For same “n+l” value, lower n value ±rst & Useful info: 4s is lower energy than 3d but only by alittle & & Which element has 3d orbitals occupied by electrons? & & A. F & B. Cl & C. Br & D. K & E. Ca & F. none of those & & Ideas: Putting electrons in orbitals & & H: 1s & He: 1s2 & & Li: 1s2 2s1 2px 2py 2pz & Be: 1s2 2s2 2p 2p 2p & B: 1s2 2s2 2p1 2p 2p & C: 1s2 2s2 2p 2p 2p & & & & & & & 10/15/2015 & 10/15/2015 &...
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• Spring '10
• Monkemeir
• Biology, li, Atomic orbital

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