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प्रश्न
Compare the properties of electrons, protons and neutrons.
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उत्तर
| Property | Electron | Proton | Neutron | |
| i. | Symbol | e- or `""_1^0e` | p+ or `""_1^1p` | n or `""_0^1n` |
| ii. | Charge | -1 unit or - 1.6 × 10-19 C | +1 unit or + 1.6 × 10-19 C | Zero |
| iii. | Mass | 9.1 × 10-31 kg | 1.67 × 10-27 kg | 1.675 × 10-27 kg |
| iv. | Location | present around the nucleus | present in nucleus | present in nucleus |
| v. | Discovery | J.J. Thomson | E. Goldstein | Chadwick |
संबंधित प्रश्न
A neutron is formed by an electron and a proton combining together. Therefore, it is neutral.
What is a neutron? State its relative mass and charge.
Explain in brief the experimental proof which led to the discovery of –
Neutrons
Calculate the number of neutrons, protons and electrons:
- atomic number 3 and mass number 7
- atomic number 92 and mass number 238.
Identify the Mg2+ ion from the Fig. where, n and p represent the number of neutrons and protons respectively
Calculate the number of neutrons present in the nucleus of an element X which is represented as `""_15^31"X"`
James Chadwick discovered the fundamental particle called proton.
Write the properties of neutrons.
The hydrogen atom does not have ______.
α, β, γ rays are during the ratio active decay ______ of an atom.
