What is the maximum number of electrons that can occupy the n=3 energy level in

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Question: What is the maximum number of electrons that can occupy the n=3 energy level in an atom? (2021)

Options:

Correct Answer: 18

Exam Year: 2021

Solution:

The maximum number of electrons in an energy level is given by the formula 2n². For n=3, it is 2(3)² = 18.

What is the maximum number of electrons that can occupy the n=3 energy level in an atom? (2021)

What is the maximum number of electrons that can occupy the n=3 energy level in an atom? (2021)

Step 1: Identify the energy level number, which is given as n=3.
Step 2: Use the formula to find the maximum number of electrons, which is 2n².
Step 3: Substitute the value of n into the formula: 2(3)².
Step 4: Calculate (3)², which equals 9.
Step 5: Multiply 2 by 9 to get 18.
Step 6: Conclude that the maximum number of electrons that can occupy the n=3 energy level is 18.

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