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what do uh mean by alpha particle
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Answer:
Alpha particle, positively charged particle, identical to the nucleus of the helium-4 atom, spontaneously emitted by some radioactive substances, consisting of two protons and two neutrons bound together, thus having a mass of four units and a positive charge of two.
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Answer:
An alpha particle is an radioactive particle that is made up of two protons and two neutrons
Explanation:
It is a helium nucleus ,...that is helium atom without electrons
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