Atoms And Nuclei Question 412

Question: If in nature there may not be an element for which the principal quantum number n > 4, then the total possible number of elements will be

Options:

A) 60

B) 32

C) 4

D) 64

Show Answer

Answer:

Correct Answer: A

Solution:

  • For n=1, maximum number of states $ =2n^{2}=2 $ and for n = 2, 3, 4, maximum number of states would be 8, 18, 32 respectively, Hence number of possible elements = 2 + 8 + 18 + 32 = 60.


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