Question

Summarise the rules for the distribution of electrons in the first 20 elements

Answer 1

This is how electrons are distributed in the first 20 elements

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Answer 2

The rules for writing of distribution of electrons in various shells for the first eighteen elements are:

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2 n = orbit number i.e., 1, 2, 3

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2 n = orbit number i.e., 1, 2, 3 Maximum number of electrons in different shells are:

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2 n = orbit number i.e., 1, 2, 3 Maximum number of electrons in different shells are: K shell n = 1 2n2 2(1)2 = 2

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2 n = orbit number i.e., 1, 2, 3 Maximum number of electrons in different shells are: K shell n = 1 2n2 2(1)2 = 2 L shell n = 2 2n2 2(2)2 = 8

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2 n = orbit number i.e., 1, 2, 3 Maximum number of electrons in different shells are: K shell n = 1 2n2 2(1)2 = 2 L shell n = 2 2n2 2(2)2 = 8 M shell n = 3 2n2 2(3)2 = 18

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2 n = orbit number i.e., 1, 2, 3 Maximum number of electrons in different shells are: K shell n = 1 2n2 2(1)2 = 2 L shell n = 2 2n2 2(2)2 = 8 M shell n = 3 2n2 2(3)2 = 18 N shell n = 4 2n2 2(4)2 = 32

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2 n = orbit number i.e., 1, 2, 3 Maximum number of electrons in different shells are: K shell n = 1 2n2 2(1)2 = 2 L shell n = 2 2n2 2(2)2 = 8 M shell n = 3 2n2 2(3)2 = 18 N shell n = 4 2n2 2(4)2 = 32 (ii) The maximum number of electrons that can be accommodated in the outermost orbit is 8.

The rules for writing of distribution of electrons in various shells for the first eighteen elements are: (i) The maximum number of electrons present in a shell is formula2n2 n = orbit number i.e., 1, 2, 3 Maximum number of electrons in different shells are: K shell n = 1 2n2 2(1)2 = 2 L shell n = 2 2n2 2(2)2 = 8 M shell n = 3 2n2 2(3)2 = 18 N shell n = 4 2n2 2(4)2 = 32 (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. (Shells are filled step-wise)

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