Is there any formula for finding unpaired electrons , if atomic no. is given.

Question

mayankdevnani · Answer

I can figure out if electronic configuration is given.
But i want a formula or shortcut trick if atomic no.is given and i can figure out what is the no.of unpaired e-

mayankdevnani · Answer

@chmvijay   @ajprincess

mayankdevnani · Answer

@hartnn

alphadxg · Answer

Sorry let me clarify the question, so you are trying to find the number of unpaired electrons, if the atomic number is given? Correct?

mayankdevnani · Answer

yeah

mayankdevnani · Answer

@alphadxg  can you answer my question ?

alphadxg · Answer

Yea, it's late right now so it's hard to think, but I think I understand your question.

mayankdevnani · Answer

Bad Luck !! :(

alphadxg · Answer

So for example, just so we can be on the same page here, If I give you the atomic number 12, this would be magnesium. It is the second member of the 3s block. To simplify the answer would be |dw:1403850247857:dw|