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

What distinguishes isotopes from one another?

Options

  1. ADifference in atomic number
  2. BDifference in atomic mass number
  3. CDifference in the number of protons
  4. DDifference in the number of neutrons

Correct answer

D. Difference in the number of neutrons

Step-by-step solution

Isotopes differ from one another in terms of the number of neutrons present in the nucleus.

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