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

Consider the following: I. The electron spin quantum number describes the orientation of the spin of the nucleus with respect to the magnetic field. II. The orbitals represented by the quantum numbers n =3, l=2, ~m =+2 and n =3, l=2, ~m =-2 have the same energy III. The energy of a photon is directly proportional to wavelength but inversely proportional to wave number IV. Lyman series of lines appear in ultra-violet

Options

  1. AII & IV only
  2. BI & II only
  3. CII, III & IV only
  4. DI, III & IV only

Correct answer

A. II & IV only

Step-by-step solution

Statement I is incorrect as the electron spin quantum number describes the orientation of the spin of the electron and not the nucleus. Statement III is incorrect as the energy of a photon is directly proportional to the frequency but inversely proportional to the wave length. Thus, II and IV only are correct.

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