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Unit 10 Vocab

TermDefinition
Alpha particle A helium nucleus; contains 2 protons and 2 neutrons; has a mass of 4 amu and a charge of +2.
Artificial transmutation Occur in a stable atoms; need some kind of high energy particles to begin reaction & bombard nucleus.
Fission SPLITTING of the nucleus of an atom; LARGER PARTICLE(S) SPLIT into smaller particles
Fusion LIGHTER NUCLEI are COMBINED to produce heavier nucleus or nuclei
Gamma radiation Electromagnetic radiation; Similar to xrays; 0 amu; Very dangerous (highly penetrating)
Half-life The amount of time required for a quantity to fall to half its value as measured at the beginning of the time period
Radioactive tracer A chemical compound in which one or more atoms have been replaced by a radioisotope.
Radioisotope An UNSTABLE or RADIOACTIVE ISOTOPE of any element
Transmutation The changing of a nucleus of one element into the nucleus of another element.
Beta particle An electron; has a mass of 0 and a charge of -1.
Created by: Sillyflamingo
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