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veganscientist
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I have already turned in my homework for chemistry however I'm still confused about this question:
Which electron configuration is in an excited state?
a.1s2 2s2 2px2
b.1s2 2s1 2px1 2py1 2pz1
My teacher told me that the only choice b was excited because choice a was in violation of Hund's rule. I am confused because I thought both of these choices were in violation of Hund's rule, and I'm not sure what the difference is. I know that choice a has an iccorect filling order because for 2px to have 2 electrons both 2py and 2pz would need 1 e-. Also I know that choice b has an incorrect filling order because the 2s needs to be filled before p can have any e-. So I thought both a and b would excited bacause they had electrons in the wrong places. Any and all help with this will be greatly appreciated.
Which electron configuration is in an excited state?
a.1s2 2s2 2px2
b.1s2 2s1 2px1 2py1 2pz1
My teacher told me that the only choice b was excited because choice a was in violation of Hund's rule. I am confused because I thought both of these choices were in violation of Hund's rule, and I'm not sure what the difference is. I know that choice a has an iccorect filling order because for 2px to have 2 electrons both 2py and 2pz would need 1 e-. Also I know that choice b has an incorrect filling order because the 2s needs to be filled before p can have any e-. So I thought both a and b would excited bacause they had electrons in the wrong places. Any and all help with this will be greatly appreciated.
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