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Noble Gas Configuration

by GLprincess02
Tags: configuration, noble
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GLprincess02
#1
Oct30-06, 04:01 PM
P: 50
Could someone please help me finish the nobel gas configuration for uranium? I get as far as [Rn] 7s2, but I can't figure out what goes next.
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geoffjb
#2
Oct30-06, 04:09 PM
P: 167
Quote Quote by GLprincess02
Could someone please help me finish the nobel gas configuration for uranium? I get as far as [Rn] 7s2, but I can't figure out what goes next.
http://en.wikipedia.org/wiki/Image:E...n_orbitals.svg
Max Eilerson
#3
Oct30-06, 04:18 PM
P: 122
What is the reason for this structure? I assume the 5F3 is more stable than 5f4, kind off like the half filled 3d5 taking preference.

On a related note I was looking here http://www.chemguide.co.uk/atoms/pro...truct.html#top, and intuitively I'd though of thought when Fe beomces Fe3+ that a 3d atom would be lost before the 4s atom since that 3d54s2, is more stable than 3d64d1?

note: been a while since I did any chemistry.

GLprincess02
#4
Oct30-06, 04:24 PM
P: 50
Noble Gas Configuration

Ok I see what my mistake was...I had the first part right, but then I kept putting 5f before 6d. In this case, 5f goes afterward, so the configuration is actually [Rn] 7s2 6d1 5f3.

Thanks for the help. :)


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