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What is the principal quantum number for an electron in the 4th shell?

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Question: What is the principal quantum number for an electron in the 4th shell?

Options:

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  4. 4

Correct Answer: 4

Solution: 

The principal quantum number (n) corresponds to the shell number. For the 4th shell, n=4.

What is the principal quantum number for an electron in the 4th shell?

Practice Questions

Q1
What is the principal quantum number for an electron in the 4th shell?
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Questions & Step-by-Step Solutions

What is the principal quantum number for an electron in the 4th shell?
Correct Answer: 4
  • Step 1: Understand what the principal quantum number (n) is. It indicates the energy level or shell of an electron.
  • Step 2: Identify the shell number you are given. In this case, it is the 4th shell.
  • Step 3: Realize that the principal quantum number (n) is equal to the shell number.
  • Step 4: Since you have the 4th shell, you can conclude that n = 4.
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