what is the electronic configuration of chromium and why
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Answered by
1
Hi Friend
___________
The electronic configuration of Chromium (Cr) = (expected )[Ar] 4s13d4
= (Actual) [Ar] 4s13d5
1) half filled and fully filled electronic configuration are more stable
___________
The electronic configuration of Chromium (Cr) = (expected )[Ar] 4s13d4
= (Actual) [Ar] 4s13d5
1) half filled and fully filled electronic configuration are more stable
prmkulk1978:
Please check the configuration again
It's 4s13d5
ya
but y
???
Answered by
1
Element is Chromium
Atomic number 24
so electronic configuration is
1s2 2s2 2p6 3s2 3p6 4s2 3 d 4 expected.
But as half filled or full filled orbitals have greater stability so one electron from 4s1,will promoted to 3d5
So chromium configuration
1s2 2s2 2p6 3s2 3p6 4s1 3d5
Atomic number 24
so electronic configuration is
1s2 2s2 2p6 3s2 3p6 4s2 3 d 4 expected.
But as half filled or full filled orbitals have greater stability so one electron from 4s1,will promoted to 3d5
So chromium configuration
1s2 2s2 2p6 3s2 3p6 4s1 3d5
hey what is half filled
There subshells in each shells called as s, p, d, f
S subshells can hold 2
P subshells 6 electrons d 10 electrons
So here 4s1 means it can hold 2 but it's half filled with one electron
but why not in element having 28 as atomic number
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