Question

calculate the number of electrons in 'k' shell​

Answer 1

Explanation:

Rule 1: The maximum number of electrons present in a particular shell is calculated by the formula 2n2, where “n” represents the shell number. For instance, K shell is the first shell and it can hold up to 2(1)2 = 2 electrons. Similarly, L shell is the second shell and it can hold up to 2(2)2 = 8 electrons.

Answer 2

To calculate the number of electrons in ‘k’ shell Bohr has given us the formula 2n^2 . As , K shell is the first shell so, n=1
By substituting the value of n=1 in 2n^2, 2(1)^2=2(1)=2. So,There are 2 electrons in K shell.