• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar

Class Notes

Free Education for All

  • Class 1-5
  • Class 6
  • Class 7
  • Class 8
  • Class 9
  • Class 10
  • Class 11
  • Class 12
  • NCERT Solutions
    • NCERT Books

chadwick

Discovery of Proton

Last Updated on May 3, 2020 By Mrs Shilpi Nagpal 3 Comments

​Since the atom as a whole is electrically neutral and the presence of negatively charged particles in it was established ,therefore, it was thought that some positively charged particles must also be present in the atom. Goldstein in 1886 performed discharge tube experiment in which he took perforated cathode and a gas at low pressure was kept inside the tube, as … [Read more...] about Discovery of Proton

Discovery of Neutron

Last Updated on May 3, 2020 By Mrs Shilpi Nagpal 1 Comment

Question 1 Name the scientist who discovered neutrons? Question 2 Which subatomic particle is not present in an ordinary hydrogen atom? Question 3 What is a neutron? Question 4 What is the charge and mass of an electron? Question 5 State the location of neutrons in an atom? Discovery of neutron After the discovery of electrons and protons,it was noticed that … [Read more...] about Discovery of Neutron

Primary Sidebar

Recent Posts

  • Exercise 4.4
  • Exercise 4.3
  • Class 10 English Chapter 9 | Bholi
  • Exercise 4.2
  • Exercise 4.1
  • Exercise 3.7
  • Class 10 English Chapter 8 | The Hack Driver
  • Exercise 3.6
  • Exercise 3.5
Copyright © 2016-2021 | About Us | Contact Us | Privacy Policy | Facebook | Pinterest | Twitter