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What is the principal quantum number of an electron in the 4s orbital?

Practice Questions

Q1
What is the principal quantum number of an electron in the 4s orbital?
  1. 2
  2. 3
  3. 4
  4. 5

Questions & Step-by-Step Solutions

What is the principal quantum number of an electron in the 4s orbital?
  • Step 1: Understand what the principal quantum number (n) is. It tells us the energy level of an electron in an atom.
  • Step 2: Identify the orbital we are looking at, which is the 4s orbital.
  • Step 3: The number before the letter 's' in '4s' is the principal quantum number.
  • Step 4: Therefore, for the 4s orbital, the principal quantum number (n) is 4.
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