Radience

Radioactivity and Atomic Energy

Science

alpha particle

a particle made of two protons and two neutrons, it is emitted from a radioactive nucleus
alpha particle Simple Definition

beta particle

a high-energy electron emitted by a radioactive nucleus
beta particle Simple Definition

chain reaction

a fission reaction which creates products that continue the same reaction repeatedly
chain reaction Simple Definition

half-life

the time it takes for half the atoms of a radioactive isotope to decay
half-life Simple Definition

nuclear fission

the splitting of an atomic nucleus into smaller nuclei and neutrons, this releases energy
nuclear fission Simple Definition

nuclear fusion

the combining of two nuclei to form a single nucleus, this releases energy
nuclear fusion Simple Definition

radioactivity

the ability of an unstable nucleus to emit radiation
radioactivity Simple Definition

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