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MDCAT
Chemistry
2021

Chemistry · Atomic Structure

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

The 'm' quantum number describes the ___ of an electron.

Options
  • A

    Energy level

  • B

    Orbital or subshell

  • C

    Orientation of orbital

  • D

    Spin

Explanation

'n' is the Principal Quantum Number that represents the different energy levels. 'l' is the Azimuthal Quantum Number which represents the different subshells. 's' is the Spin Quantum Number which represents the different spin directions of an electron while moving in an orbital. 'm' is the Magnetic Quantum Number that represents the orientation of the orbital.

n is the principal quantum number that represents different energy levels.

l is the azimuthal quantum number that describes the subshells of a shell.

m quantum number is the magnetic quantum number that describes the orientation of the orbitals.

s is the spin quantum number which describes different spins of electrons in an orbital.

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Tagged under Chemistry · Atomic Structure · 2021