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JEE Main2016ChemistryStructure of AtomActual

The total number of orbitals associated with the principal quantum number 5 is:

Options

  1. A20
  2. B25
  3. C10
  4. D5

Correct answer

B. 25

Step-by-step solution

Number of electrons in a shell of quantum number n = 2 n 2 . Since, 2 electrons are stored in 1 orbital, Number of orbitals in a shell = n 2 = 5 2 = 25 .

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