Moderate

Quantum number which describes the orientation of orbitals in three dimensional space is:

Correct answer: C. Magnetic quantum number

  • A. Spin quantum number
  • B. Azimuthal quantum number
  • C. Magnetic quantum number
  • D. Principal quantum number

Explanation

Magnetic Quantum Number (m) : Gives the orientation of the orbital in space; in other words, the value of m describes whether an orbital lies along the x-, y-, or z-axis on a three-dimensional graph, with the nucleus of the atom at the origin. m can take on any value from −ltol. Hence option C is correct.

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About Atomic Structure

Atomic structure covers the discovery of the proton, Planck's quantum theory, hydrogen emission spectra and the evidence for quantized energy levels. You will use quantum numbers to describe orbitals, distinguish s, p, d and f orbital shapes, and write electronic configurations, including the correct order of electron filling.

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