How do we calculate number of electrons in an orbit

1.	How do we calculate number of electrons in an orbit
Answer» No. Of electrons in an atom is same as it\'s atomic no......no. of atoms in a shell can be found out by 2nsquare rule....let\'s take an example of neon....it\'s atomic no. Is 10...so it consist 10 electrons,...in its K shell...n=1 son by doing 2nsquare....2×1*1=2 so in Kshell three will be 2 electrons....in L shell n=2 so by rule no .of electrons in it are 8....so in this way 10 electrons of neon are distributed in different shells....but after L shell... remember that the two n Square rule is overlapped by octet rule

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