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प्रश्न
Explain in brief the experimental proof which led to the discovery of –
Protons
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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.
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संबंधित प्रश्न
What is the positive charge on the nucleus of an atom due to?
Name the subatomic particle whose relative charge is : +1
What is a proton? State its relative mass and charge.
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.
Name the sub-atomic particle whose charge is +1.
Write down the names of the particles represented by the following symbols and explain the meaning of superscript and subscript numbers attached `""_1"p"^1, ""_0"n"^1,""_-1"e"^0`
Define: Proton
Is it possible for the atom of an element to have one electron, one proton and no neutron. If so, name the element.
What are fluorescent materials?
