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प्रश्न
Compare a proton and a neutron in respect of mass and charge.
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उत्तर
Proton: The relative mass of a proton is 1u and its absolute mass is approximately 1.602 × 10–24g. Charge on a proton is +1.
Neutron: Relative mass of a neutron is 1u and its absolute mass is approximately 1.602 × 10–24g . Charge on a neutron is zero.
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संबंधित प्रश्न
Fill in the blank
Neutrons are .......................... particles having mass equal to that of protons.
Give the following a suitable word/phrase
The sub-atomic particle with negative charge and negligible mass.
Multiple Choice Questions
number of valence electrons present in magnesium is
Define the term Atomic number.
FILL IN THE BLANK
Gases become good conductors of electricity under ........ (low/high) pressure and .............. (low/high) voltage electrical discharge.
FILL IN THE BLANK
The γ-rays are............................ radiations, like light.
ANSWER IN DETAIL
What is the maximum number of electrons that L shell can accommodate ? Give reasons for your answer.
Which of the following statement is always correct?
With reference to the discovery of the structure of an atom, explain in brief – William Crookes experiment for the discovery of cathode rays, followed by – J.J. Thomsons experiment pertaining to the constituents of the cathode rays. State which sub-atomic particle was discovered from his experiment.
What is meant by the term subatomic particles?
