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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
Fill in the blank of the following statement :
The anode rays obtained from hydrogen gas consist of particles called ________
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?
What is the nature of the charge on Anode rays?
How does cathode ray differ from as anode rays?
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`
What is the significance of the number of protons found in the atoms of different elements?
Represent a neutron ‘n’ in term of its symbol showing the subscript and superscript value.
Assertion: Proton can be defined as a hydrogen ion (H+).
Reason: These photons are produced when one electron is removed from one hydrogen atom.
What are fluorescent materials?
