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RADIATION (Isotopes (Stable, Unstable and Decay (unstable isotopes often…
RADIATION
Isotopes
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Stable, Unstable and Decay
in most nuclei, the protons and neutrons are held tightly together with great force - STABLE
in some nuclei, the forces holding the protons and neutrons are not so strong - UNSTABLE
unstable isotopes often DECAY - they lose part of their matter and become other elements - called RADIOISOTOPES because they are radioactive
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Nuclear Radiation
matter lost from the nucleus of radioisotopes is called nuclear radiation - any rays/particles emitted by atomic nuclei
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can be useful in medicine, industry, and scientific research
Background Radiation
almost all elements contain some nuclei that are radioactive, so we are exposed to low-level background radiation all the time
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Nuclear Decay
the rearrangements of protons and neutrons in a nucleus can sometimes cause the nucleus to emit high-energy electromagnetic radiation and particles
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Nuclear Reactions
to convert an atom into an atom of another element requires a change in the nucleus - can only be done by a nuclear reaction