Question

Which of the following orbital has the lowest energy​

Answer 1

The orbital having lowest energy is 2p.

• Electrons move around is subshells of an atom.
• The subshells in order of corresponding energies from lower to higher is as follows:

1s,2s,2p,3s,3p,4s,3d,4p,5s,4d,5p,6s,4f,5d,6p,7s,5f,6d,7p

• Based on the sequence above, among the mentioned options, 2p orbital has the lowest energy.
• Other options, such as 3d is not correct as 3d has more energy as compared to 2p.

The question is not complete. The complete question is:

Which of the following orbital has the lowest energy​?

A) 2p

B) 3s

C) 3d

D) 4s

E) 3p

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Answer 2

Explanation:

The orbital having lowest energy is 2p