NATS 1840 Chapter Notes - Chapter 3: Nuclear Fission, Radioactive Decay, Spontaneous Emission
8 Feb 2019
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Document Summary
An atom can change from one isotope to another when its nucleus loses particles or gives off high- energy electromagnetic radiation. Nuclear changes: when nuclei of certain isotopes spontaneously change or are made to change into nuclei or different isotopes. Radioactive decay : a nuclear change in which unstable isotopes spontaneously emit fast moving chunks of matter (particles), high energy electromagnetic radiation, or both. decay yielding an isotope that is more stable that the original. Unstable isotopes are called radioactive isotopes or radioisotopes , they only. Gamma rays: high-energy electromagnetic radiation, highly penetrating (used in. High speed ionizing particles emitted from radioactive isotopes exists in two cancer therapy). types: Alpha particles: fast-moving, positively charged chunks of matter that. Beta particles : high speed electrons consist of two protons and two neutrons.
