Advertisement Remove all ads

Explain in Brief the Experimental Proof Which Led to the Discovery of – Neutrons - Chemistry

Short Note

Explain in brief the experimental proof which led to the discovery of –


Advertisement Remove all ads


Discovery of Neutrons: As atom contains protons and electrons. The atomic mass of the electron is negligible.
∴ An atom of helium which contains 2 protons should have a mass = (2 × 1) + 0 = 2 a.m.u. But the atomic mass of a helium atom was found to be approximately 4.0 a.m.u. It was, therefore, proved that, in the nucleus of an atom, there is another particle called a neutron which has no electrical charge but is almost of an equal mass as the protons.

Concept: Sub-atomic Particles of Atom - Neutrons (N)
  Is there an error in this question or solution?
Advertisement Remove all ads


Viraf J. Dalal Class 9 Simplified ICSE Chemistry
Chapter 4 Atomic Structure & Chemical Bonding
Additional Questions | Q 2.4
Advertisement Remove all ads
Advertisement Remove all ads

View all notifications

      Forgot password?
View in app×