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प्रश्न
What is an α (alpha) particle?
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उत्तर
An α-particle is a doubly charged helium ion (He2+) containing two protons and two neutrons. It is formed by removing two electrons from the helium atom.
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संबंधित प्रश्न
In term of electron transfer, define
Reduction
Match the column A with Column B.
|
Column A |
Column B |
|
(i) Sodium chloride (ii) Ammonium ion (iii) Carbon tetrachloride |
Covalent bond Ionic bond Covalent and coordinate bond |
What do you think would be the observation of `alpha` particle scattering experiment if carried out on (i) heavy nucleus like platinum (ii) light nuclei like litheum.
Why do they exist as monoatoms in molecules?
Name the following:
An element having valency 'zero'
Name the following:
Two atoms having the same number of protons and electrons but different number of neutrons.
Give a reason
Physical properties of isotopes are different.
Explain
Duplet rule for the formation of hydrogen
Identify the following reaction as either oxidation or reduction:
K - e- → K+
Draw the electron distribution diagram for the formation of Carbon di oxide (CO2 ) molecule.
