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Chem_215_Lect_39_Color

Chem_215_Lect_39_Color - Ch 21 Nuclear Chemistry...

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1 Ch. 21: Nuclear Chemistry • Radioactivity: – Term coined by Marie Curie to describe the emission of ionizing radiation by certain elements. – Emitted radiation is sufficiently energetic to eject electrons (ionize) or break chemical bonds. – Radiation either electromagnetic or particulate. Types of Radiation: α particles: Nuclei of He atoms ( i.e., He 2+ ) β - particles: High energy electrons emitted by nuclei γ (gamma) rays: High energy electromagnetic Radiation
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