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Question:
give an explanation for alpha particle.
Answer:

Alpha particle is positively charged particle that consists of two protons and two neutrons bound together. It is emitted by thenucleus of some elements undergoing radioactive decay and is identical to the nucleus of a helium atom. Alphaparticles are the slowest and least penetrating forms of nuclear radiation.

The process by which a radioactiveelement emits an alpha particle is called alpha decay. Alpha decay results in the atomic number of the atom beingdecreased by two and the mass number being decreased by four.

 

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