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### Topic: quantum numbers for an electron  (Read 4680 times)

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#### miss.strw

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##### quantum numbers for an electron
« on: September 23, 2009, 09:39:29 AM »
Hi, I just want to make sure that this is correct. thanks

Which of the following is the correct set of quantum numbers for an electron in a 3d orbital ?

a)   n = 3       l = 2       ml = −2       ms = +1/2

b)   n = 3       l = 2       ml = 3       ms = −1/2

c)   n = 2       l = 2       ml = 2       ms = +1/2

d)   n = 2       l = 3       ml = −2       ms = +1/2

#### Yggdrasil

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##### Re: quantum numbers for an electron
« Reply #1 on: September 23, 2009, 11:40:07 AM »
You're close to the correct answer, but you need to consider what the "3" signifies in the 3d orbital's name.

#### miss.strw

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##### Re: quantum numbers for an electron
« Reply #2 on: September 23, 2009, 01:38:52 PM »
You're close to the correct answer, but you need to consider what the "3" signifies in the 3d orbital's name.

Correct me if i'm wrong, but the only answer is a?

#### UG

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##### Re: quantum numbers for an electron
« Reply #3 on: September 23, 2009, 03:50:10 PM »
Yes, it it!