Question

Summarise the rules for writing of distrubution of electrons in various shells for the first 18 elements where is the answer in book

Answer 1

Each of element contains electrons in electron shells .First cell contain 2 atoms which is calld K shell.
2nd shell can accomodate 8 electrons which is called L shell .3rd and 4th shells are called M and N cell which can accomodate 18 and 32 electrons but if a shell contains more then 8 electrons then it will be unstable. So,the outermost shell are filled with only 8 electrons. For ex - sodium has atomic no. 11 then its electronic configuration will be-
K L M
2 8 1

Answer 2

Answer:

The distribution of electrons in

various shells of an atom is called

electrons configuration in order to

writer the electronic configuration

of an element one should proceed

as follows.

Explanation:

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