Which of the following transitions in a hydrogen atom will emit the highest ener

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Question: Which of the following transitions in a hydrogen atom will emit the highest energy photon? (2019)

Options:

Correct Answer: n=2 to n=1

Exam Year: 2019

Solution:

The energy of the emitted photon is highest for the transition from n=2 to n=1, as it involves the largest difference in energy levels.

Which of the following transitions in a hydrogen atom will emit the highest energy photon? (2019)

Which of the following transitions in a hydrogen atom will emit the highest energy photon? (2019)

Step 1: Understand that a hydrogen atom has energy levels, which are represented by 'n' values (n=1, n=2, n=3, etc.).
Step 2: Know that when an electron in a hydrogen atom transitions from a higher energy level (n) to a lower energy level, it emits a photon.
Step 3: The energy of the emitted photon depends on the difference between the two energy levels (higher n to lower n).
Step 4: Identify the transitions: n=2 to n=1, n=3 to n=2, etc.
Step 5: Calculate the energy difference for each transition. The transition from n=2 to n=1 has the largest energy difference.
Step 6: Conclude that the transition from n=2 to n=1 emits the highest energy photon.

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