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प्रश्न
Select the correct answer from the choice in the bracket to complete the sentence:
A ________ is a sub-atomic particle with no charge and unit mass.
विकल्प
proton
neutron
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उत्तर
A neutron is a sub-atomic particle with no charge and unit mass.
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The electrons present in the outermost shell.
FILL IN THE BLANK
In an atom, the last shell containing electrons is called its..................shell.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Compare an electron and a proton in respect of mass and charge.
State the location of electrons, protons and neutrons in an atom.
Define the term Mass number.
Define the term Nucleons.
Explain how the modern atomic theory contradicted Dalton’s atomic theory.
State how electrons are distributed in an atom. Explain in brief the rules which govern their distribution.
What is meant by the term subatomic particles?
