Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETChemistryStructure of Atom

An electron is present in the 4f orbital. The correct values of principal quantum number ( n ) and azimuthal quantum number ( l ) for this electron are respectively:

Options

  1. An=4, l=4
  2. Bn=4, l=2
  3. Cn=3, l=4
  4. Dn=4, l=3

Correct answer

D. n=4, l=3

Step-by-step solution

For a given orbital notation, the numerical prefix represents the principal quantum number ( n ) and the letter represents the azimuthal quantum number ( l ). For the 4f orbital, the principal quantum number is n=4 . The subshell letters s, p, d, f correspond to azimuthal quantum numbers l = 0, 1, 2, 3 respectively. Therefore, for the f subshell, l=3 . Answer: n=4, l=3

Practice Structure of Atom on Quantrex Academy →

More from Structure of Atom

Identify the pair of atoms of elements as isotones from the following. 2026Which of the following elements has an electronic configuration, [ Ar ] 4s^2 ? 2026Calculate the energy per mole of photons of red light with a wavelength 750 nm. [ h = 6.626 10⁻³⁴ Js, C = 3 10^8 m/s.] 2026Calculate the energy associated with an electron in the first orbit of hydrogen atom? 2026Find the wave number of the 4^ th line in the Lyman series of H spectrum. (R = Rydberg constant) 2026Calculate the de-Broglie wavelength of an electron having velocity 1000 ms ⁻¹ [ h = 6.626 10⁻³⁴ js , mass of an electron = 9.1 10⁻³¹ kg ] 2026How many total number of s and p electrons are respectively present in Cl ^- ? 2026Visible light has a wavelength of 700 nm. Calculate its frequency in hertz. 2026 Full Structure of Atom list All NEET PYQs