Question

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

Answer 1

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.

Answer 2

Answer:

I'm not a science students tell the other