Radience

Radioactivity and Atomic Energy

Science

Watch Lesson: Radioactivity and Atomic Energy

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a particle made of two protons and two neutrons, it is emitted from a radioactive nucleus
Watch alpha particle Simple Definition
a high-energy electron emitted by a radioactive nucleus
Watch beta particle Simple Definition
a fission reaction which creates products that continue the same reaction repeatedly
Watch chain reaction Simple Definition
the time it takes for half the atoms of a radioactive isotope to decay
Watch half-life Simple Definition
the splitting of an atomic nucleus into smaller nuclei and neutrons, this releases energy
Watch nuclear fission Simple Definition
the combining of two nuclei to form a single nucleus, this releases energy
Watch nuclear fusion Simple Definition
the ability of an unstable nucleus to emit radiation
Watch radioactivity Simple Definition

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