What Causes Radioactive Materials and How Are Atoms Affected?

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Radioactive materials are caused by unstable atomic nuclei that undergo radioactive decay, emitting radiation. This process can be influenced by cosmic rays and environmental factors like fallout. The part of the atom primarily affected during radioactivity is the nucleus, where protons and neutrons are involved in decay. Ionization occurs when electrons are removed from atoms, leading to the formation of charged particles. Understanding the definition of radioactive decay is essential for grasping the underlying mechanisms of radioactivity.
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Homework Statement


Marie curie referred to radioactivity as an invisible radiation that exposed photographic plates. What causes materials to be radioactive and what part of the atom is affected.

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The Attempt at a Solution


cosmic rays and fallout? The electrons are removed from the atom called ionized. Also uranium causes radioactive materials.
 
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Try reading up on the definition of radioactive decay and you'll find better answers to your questions.
 

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