| 11. | I would assume radium releases primarily alpha particles, and very little gamma radiation.
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| 12. | Rutherford named these fragments of ejected nucleus "'alpha particles " '.
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| 13. | Plutonium-238 has a half-life of 88 years and emits alpha particles.
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| 14. | Alpha particles, like helium nuclei, have a net spin of zero.
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| 15. | Once inside, the alpha particles radiated from the actinium-225 will kill the cell.
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| 16. | Ideally, alpha particles will expend their energy in the plasma, further heating it.
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| 17. | To their astonishment, a small fraction of the alpha particles experienced heavy deflection.
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| 18. | Some of the alpha particles are absorbed by the atomic nuclei.
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| 19. | It works by bombarding a rock or soil sample with alpha particle radiation.
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| 20. | Consequently, alpha particles appear frequently on the right hand side of nuclear reactions.
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