Question

Summarise the rules for writing of distribution of electrons in various shells for the first eighteen elements.​

Answer 1

Answer:

The following rules are followed for writing the number of electrons in different shell :

• IThe maximum number of electrons presents in a shell is given by the formula 2n² where "n" is the orbit number of energy level index 1,2,3...

Eg : First orbit = 2×1² = 2

Second orbit or L shell will be = 2 × 2² = 8

etc .

• The maximum number of electrons that can be accommodated in the outermost orbit is 8.
• Electrons are not accommodated in a given shell unless the inner shells are filled. That is the shells are filled in a stepwise manner.

Answer 2

Image result for Summarise the rules for writing of distribution of electrons in various shells for the first eighteen elements

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.