Question

When an electron jumps from the L to the K shell:

• A. Energy is absorbed
• B. Energy is released
• C. Energy is neither absorbed nor released
• D. Energy is sometimes absorbed and some times released

Answer 1

The correct option is B Energy is released

For shells K, L, M, N ..., energy for K shell is minimum and increases as we move to the other shells (L, M, N ..).
Therefore, when an electron jumps from L (higher state) to K (lower state), energy is released.