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In a multi-electron atom, which of the following orbitals described by the three quantum numbers will have the same energy in the absence of magnetic and electric fields?(a) (b) (c) (d) (e)

  1. A
    (a) and (b)
  2. B
    (b) and (c)
  3. C
    (c) and (d)
  4. D
    (d) and (e)

Solution & Step-by-step Explanation

In the absence of external fields, orbitals with the same principal quantum number () and azimuthal quantum number () are degenerate (have the same energy).(d): ( orbital)(e): ( orbital)Since both have the same and values, they have the same energy.

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Try it yourself before checking the explanation above.

In a multi-electron atom, which of the following orbitals described by the three quantum numbers will have the same energy in the absence of magnetic and electric fields?(a) (b) (c) (d) (e)
A
(a) and (b)
B
(b) and (c)
C
(c) and (d)
D
(d) and (e)

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Atomic StructureQuantum NumbersOrbitals

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