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प्रश्न
Name three fundamental particles of the atom. Give the symbol with charge, on each particle.
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उत्तर
The fundamental particles of the atom are: electrons, protons and neutrons.
| Particle | Symbol | Charge |
| electron | e– | -1 or 1.602 x 10-19 C. Where -1 represent its one unit negative electrical charge |
| proton | p+ | + 1 or 1.602 x 10-19 C. Where +1 represents one unit +ve electrical charge. |
| neutron | no | 0 |
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संबंधित प्रश्न
Give the following a suitable word/phrase
Arrangement of electrons in the shells of an atom.
Mention briefly the salient features of Dalton’s atomic theory (five points)
FILL IN THE BLANK
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WRITE SHORT ANSWER
What is an atom?
Compare an electron and a proton in respect of mass and charge.
State the location of electrons, protons and neutrons in an atom.
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State its one drawback of Rutherford’s atomic model.
Define the term Mass number.
Explain in brief – Goldstein’s experiment which led to the discovery of the proton.
