Question

With the help of Pauli's exclusion principle and concept of atomic number of the orbitals show that an m-shell cannot accommodate more than 18 electrons

Answer 1

Answer: we know the maximum number of electrons can be filled is determined by the formula = 2 n^2

Explanation: for M shell the value of n will be 3.

we know thr trend

n= 1,2,3 ..and so on

for K,L,M,N shells.

hence total number of electrons reside in m shell = 2 x (3)^2 = 18

Answer 2

Answer:

Explanation:

According to Pauli's exclusion principle, "only two electrons may exist in the same orbital and these electrons must have opposite spin."

For M-shell [n = 3 ]

Maximum number of electrons in the shell = 2n^2

= 2(3)^2

= 18

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