What is the maximum number of electrons that can occupy the n=3 shell?

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Question: What is the maximum number of electrons that can occupy the n=3 shell?

Options:

Correct Answer: 18

Solution:

The maximum number of electrons in a shell is given by the formula 2n^2. For n=3, it is 2(3^2) = 18.

What is the maximum number of electrons that can occupy the n=3 shell?

What is the maximum number of electrons that can occupy the n=3 shell?

Step 1: Understand that 'n' represents the shell level in an atom.
Step 2: Identify the value of 'n' given in the question, which is 3.
Step 3: Use the formula for the maximum number of electrons in a shell, which is 2n^2.
Step 4: Substitute the value of n into the formula: 2(3^2).
Step 5: Calculate 3^2, which is 9.
Step 6: Multiply 2 by 9 to get 18.
Step 7: Conclude that the maximum number of electrons that can occupy the n=3 shell is 18.

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