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Question

Electrons in an atom revolve around the nucleus in certain selected concentric paths which are called orbits. Which of the following orbit do you think will have highest energy?


A

K orbital

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B

L orbital

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C

M orbital

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D

N orbital

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Solution

The correct option is D

N orbital


The energy of the outermost orbital is highest. The energy of the electron increases when the electron moves from K to L, M, N orbits respectively.

In the given options N is the outermost orbit and has the highest energy.
Electrons in outer shells have higher average energy and travel farther from the nucleus than those in inner shells.


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