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If you take a __________, it means you do something to stop something dangerous from happening.
Exposing objects to nuclear radiation is called ___________.
A _____ reaction is when neutrons, released during fisson, cause frisson in other nuclei which cause more neutrons to be released.
A chain ________ is when neutrons, released during fisson, cause frisson in other nuclei which cause more neutrons to be released.
_______ fusion is when two nuclei are joined together.
Nuclear _______ is when an unstable nucleus is split.
A _________ is a unit of activity.
The rate at which a source of unstable nuclei decays is known as its ________.
The number of decays recorded per second is the __________.
Radiation in the environment is called __________ radiation.
_________ in the environment is called background _________.
If something is ___________, it means it happens without external stimulus.
