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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता ८ वी

Give brief information of three subatomic particles with reference to electrical charge, mass and location. - Marathi (Second Language) [मराठी (द्वितीय भाषा)]

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प्रश्न

Give brief information of three subatomic particles with reference to electrical charge, mass and location.

सविस्तर उत्तर

उत्तर

  1. Electron
    1. Electrons are present outside the nucleus of an atom.
    2. Electrons are negatively charged that is (−1.6 × 10-19 coulomb).
    3. The mass of an electron is considered to be negligible. It is 1800  times less than that of a hydrogen
    4. The mass of an electron is 1800 times less than that of a hydrogen atom
    5. It revolves around the nucleus in the discrete orbit.
  2. Proton:
    1. Protons are present inside the nucleus of an atom.
    2. Protons are positively charged that is (1e = 1.6 × 10-19  coulomb).
    3. The mass of a proton is approximately 1 u (1 Dalton) that is (1u = 1.66 × 10-27 kg).
    4. They are closely bound in the nucleus.
  3. Neutron:
    1. Neutrons are present inside the nucleus of an atom.
    2. Neutrons are neutral. There is no charge.
    3. 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).
    4. They are closely bound in the nucleus.
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पाठ 5: Inside the Atom - Exercise [पृष्ठ ३८]

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