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positively-charged particles consisting of two protons and two neutrons emitted by radioactive materials.
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positively-charged particles consisting of two protons and two neutrons emitted by radioactive materials.

User Colin Hale
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alphaaaaaaaaaaaaaaaaaaaa

User The Pax Bisonica
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alpha particles!

These particles are positively charged and made up of two protons and two neutrons from the atom's nucleus. Alpha particles come from the decay of the heaviest radioactive elements. :)
User Lakshay
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