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प्रश्न
What is a neutron? State its relative mass and charge.
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उत्तर
A neutron is a subatomic particle denoted by symbol 'n'. It has no net electric charge and has a mass slightly more than that of a proton. The neutron is a neutral particle found in the nucleus of an atom. Its relative mass is 1u.
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संबंधित प्रश्न
Name the three sub-atomic particles of an atom.
A neutron is formed by an electron and a proton combining together. Therefore, it is neutral.
Fill in the blank of the following statement :
If the nucleus of an atom has atomic number 17, mass number 37 and there are 17 electrons outside the nucleus, the number of neutrons in it is __________.
State the number of neutrons in each of the atoms A to E. Also state which of the atoms A to E is a metal.
Calculate the number of neutrons, protons and electrons:
- atomic number 3 and mass number 7
- atomic number 92 and mass number 238.
Isotopes exist because atoms of the same element can have different numbers of ______.
Write the properties of neutrons.
Which subatomic particles have no charge?
α, β, γ rays are during the ratio active decay ______ of an atom.
Beryllium + α – rays → Carbon + ______.
