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प्रश्न
Give brief information of three subatomic particles with reference to electrical charge, mass and location.
उत्तर
- Electron
- Electrons are present outside the nucleus of an atom.
- Electrons are negatively charged that is (−1.6 × 10-19 coulomb).
- The mass of an electron is considered to be negligible. It is 1800 times less than that of a hydrogen
- The mass of an electron is 1800 times less than that of a hydrogen atom
- It revolves around the nucleus in the discrete orbit.
- Proton:
- Protons are present inside the nucleus of an atom.
- Protons are positively charged that is (1e = 1.6 × 10-19 coulomb).
- The mass of a proton is approximately 1 u (1 Dalton) that is (1u = 1.66 × 10-27 kg).
- They are closely bound in the nucleus.
- Neutron:
- Neutrons are present inside the nucleus of an atom.
- Neutrons are neutral. There is no charge.
- The mass of a neutron is nearly equal to the mass of a proton that is 1u(1Dalton) that is (1u = 1.66 × 10-27 kg).
- They are closely bound in the nucleus.
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