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प्रश्न
State the location of electrons, protons and neutrons in an atom.
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उत्तर
In an atom, the position of subatomic particles is as follows:
Protons: They are positively charged particles present at the centre of the nucleus of an atom.
Neutrons: They are neutral subatomic particles also present in the nucleus of an atom.
Electrons: They are negatively charged particles which revolve in particular orbits around the nucleus of an atom.
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संबंधित प्रश्न
Name three fundamental particles of the atom. Give the symbol with charge, on each particle.
FILL IN THE BLANK
In an atom, the last shell containing electrons is called its..................shell.
Tick the most appropriate answer.
In 1908, R A Millikan found the charge of an electron to be
- 1.6 x 10-19 C
- 1.6 x 10-15 C
- 1.4 x 10-19 C
- 1.6 x 19-16 C.
WRITE SHORT ANSWER
What is the charge on a neutron ?
ANSWER IN DETAIL
Name the three subatomic particles. How are they different from each other ?
Why is an atom neutral inspite of the presence of charged particles in it?
Name the sub-atomic particle whose charge is 0.
Define the term Nucleons.
Define the term Valence shell.
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.
