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In an atom when an electron jumps from K...

In an atom when an electron jumps from K-shel to M-shell

A

Energy is absorbed

B

Energy is emitted

C

Energy is neither absorbed nor emitted

D

Sometines energy is absorbed and some times emitted

Text Solution

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The correct Answer is:
To solve the question regarding the behavior of an electron jumping from the K-shell to the M-shell in an atom, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Energy Levels**: - The K-shell corresponds to the principal quantum number \( n = 1 \). - The M-shell corresponds to the principal quantum number \( n = 3 \). - The energy levels increase as we move away from the nucleus. 2. **Understand Electron Transition**: - When an electron transitions from a lower energy level (K-shell) to a higher energy level (M-shell), it requires energy to make this jump. 3. **Energy Absorption**: - Since the electron is moving from a lower energy state (K-shell) to a higher energy state (M-shell), it must absorb energy to overcome the energy difference between these two shells. 4. **Conclusion**: - Therefore, when an electron jumps from the K-shell to the M-shell, energy is absorbed. 5. **Select the Correct Option**: - Given the options: 1. Energies absorbed 2. Energies emitted 3. Energies neither absorbed nor emitted 4. Sometimes energies absorbed and sometimes emitted - The correct answer is option 1: Energies absorbed. ### Final Answer: The correct answer is **option 1: Energies absorbed**.
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