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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
Which subatomic particle was discovered by : Goldstein ?
What is a proton? State its relative mass and charge.
Name the sub-atomic particle whose charge is +1.
What is the significance of the number of protons found in the atoms of different elements?
Define: Electron
Represent a proton ‘p’ in term of its symbol showing the subscript and superscript value.
Represent a neutron ‘n’ in term of its symbol showing the subscript and superscript value.
Name or state the following.
Two elements having the same number of protons and electrons but a different number of neutrons.
A proton can be defined as a ______.
What are fluorescent materials?
