Question

write the rules for writing electronic distribution of an atom​

Answer 1

Answer:

The electrons first occupy the shell with the lowest energy i.e., closest to the nucleus. The first or the innermost energy shell (K or n = 1) can take only two electrons. The second shell (L or n = 2) can contain upto 8 electrons. From third shell (M or n = 3) onwards, the shells become bigger

Answer 2

Answer:

Summarise the rules for writing of distribution of electrons in various shells for the first eighteen elements. (ii) The maximum number of electrons that can be accommodated in the outermost orbit is 8. (iii) Electrons are not accommodated in a given shell unless the inner shells are filled.

Explanation:

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