The Electron Orbits With Principal Quantum Numbers n > 3 Were Not Allowed, The Number Of Possible Elements Would Be  

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Question

The electron orbits with principal quantum numbers n > 3 were not allowed, the number of possible elements would be  

Solution

Correct option is

28

The maximum number of electrons that can be accommodated in orbits with n = 3 is  

         

         = 28.

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