Which quantum number determines the energy level of an electron in an atom?

Practice Questions

Q1
Which quantum number determines the energy level of an electron in an atom?
  1. n
  2. l
  3. m_l
  4. s

Questions & Step-by-Step Solutions

Which quantum number determines the energy level of an electron in an atom?
  • Step 1: Understand that electrons in an atom are arranged in energy levels.
  • Step 2: Know that these energy levels are represented by quantum numbers.
  • Step 3: Identify the principal quantum number, which is denoted by 'n'.
  • Step 4: Realize that the value of 'n' indicates the energy level of the electron.
  • Step 5: Conclude that the principal quantum number 'n' is the one that determines the energy level of an electron.
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