If Aufbau rule is not obeyed and the electronic filling occurs orbit by orbit till saturation is reached (for a given principal quantum number n, electrons are filled in the increasing order of azimuthal quantum number l), then the percentage change in sum of all (n+l) values for unpaired electrons in an atom of iron is 10x. What is the value of x?
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Updated on : 2022-09-05
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Correct option is A)
When n+l rule is obeyed, the configuration is
Since, (n+l) for each unpaired electron is 5, so for 4 unpaired electrons in 26Fe, (n+l) is 5×4=20.
When n+l rule is not obeyed, the configuration is
Since, (n+l) for each unpaired electron is 5, so for 2 unpaired electrons in 26Fe, (n+l) is 5×2=10.