Vocab Flashcards
(25 cards)
The SI Unit of radioactivity equal to the disintegration of one nucleus per second
Becquerel
The splitting of an elements nucleus into lighter elements
Fission
The emission of radiation from the nucleus of an atom by a process of decay
Radioactivity
Made impure or unable to be used
Contaminated
An action taken before hand to prevent a bad result
Precaution
Capable of undergoing nuclear fission
Fissile
The amount of a fissionable material required to sustain a chain reaction
Critical mass
To observe or oversee
Monitor
Kept going into required to stop
Sustained
Having to do with the nucleus of an atom
Nuclear
The amount of time during which half of a quantity of a radioactive substance will decay
Half-life
A particle that consists of a proton and a neutron and is the nucleus of a hydrogen-2 atom
Deuteron
The combining of two nuclei of atoms to form a nucleus of a heavier atom
Fusion
Having to do with nuclear fusion
Thermonuclear
The changing of an element or nuclide into another element or nuclide by decay or bombardment of an atom’s nucleus
Transmutation
A particle that has the mass of an electron but a positive charge
Positron
A small, electrically neutral particle that travels close to the speed of light and is capable of passing through matter nearly unchanged
Neutrino
Examining or determining the cause and nature of a disease or illness
Diagnosis
A radioactive material used to follow the path of a chemical’s journey through the body
Tracer
Exposed to radiation
Irradiated
When the nucleus of an unstable atom of a particle element decays , it emits __________.
Radioactivity
Alpha radiation consists of the particles of a(n) _____ nucleus.
Helium
The _______ of an element that emits beta particles will change.
Atomic number
Overall, energy in the release of gamma radiation is ____.
Lost
