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प्रश्न
Explain the following:
Mass of an atom is concentrated inside the nucleus of the atom.
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उत्तर
Mass of an atom is contributed by mass of protons and mass of neutrons present inside the nucleus of an atom. Electrons present outside the nucleus are of negligible mass. Therefore, the mass of an atom is concentrated inside the nucleus of an atom.
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संबंधित प्रश्न
Which subatomic particle was discovered by : Goldstein ?
Fill in the blank of the following statement :
The anode rays obtained from hydrogen gas consist of particles called ________
All the gases from cathode rays anode rays when electricity is passed through them :
What does the formation of anode rays tell us about the atoms?
(a) What are cathode rays? What is the nature of charge on cathode rays?
(b) Explain how, cathode rays are formed from the gas taken in the discharge tube.
(c) What conclusion is obtained from the fact that all the gases from cathode rays?
Why are anode rays also called as 'canal rays'?
Represent a neutron ‘n’ in term of its symbol showing the subscript and superscript value.
Write the properties of anode rays.
Is it possible for the atom of an element to have one electron, one proton and no neutron. If so, name the element.
Assertion: Proton can be defined as a hydrogen ion (H+).
Reason: These photons are produced when one electron is removed from one hydrogen atom.
An atom is electrically neutral. Give reason.
