Advertisements
Advertisements
प्रश्न
Explain in brief the experimental proof which led to the discovery of –
Protons
Advertisements
उत्तर
Protons: Since atoms are electrically neutral there must be equal positively charged particles in the atom. This led to the discovery of the protons.
Goldstein discovered protons. He used a perforated disc as a cathode and found positively charged rays travelling in the opposite direction to cathode rays.
These were protons i.e. positively charged particles, 1837 times heavier than an electron.
APPEARS IN
संबंधित प्रश्न
Name the positively charged particle present in the atoms of all the elements.
Which subatomic particle was discovered by : Goldstein ?
How does a proton differ from an electron?
All the gases from cathode rays anode rays when electricity is passed through them :
What does the formation of anode rays tell us about the atoms?
Name the gas which produces anode rays consisting of protons in the discharge tube experiment.
Which sub-atomic particle was discovered by Goldstein.
Explain the following:
Mass of an atom is concentrated inside the nucleus of the atom.
Define: Proton
In response to a question, a student stated that in an atom, the number of protons is greater than the number of neutrons, which in turn is greater than the number of electrons. Do you agree with the statement? Justify your answer.
An atom differs from its ion in ______.
