1.

why is potassium's electronic configuration 2 ,8 , 8 ,1 and why not as the m shell can hold 18 electrons​

Answer»

Answer:

According to octet rule, the outermost shell of an atom can ACCOMMODATE maximum 8 electrons (EXCEPT K shell which can accommodate maximum 2 electrons). Hence, the electronic CONFIGURATION of potassium is 2,8,8,1 and not 2,8,9.



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