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Chapter 14

Section 2

TermDefinition
a method of determining the absolute age of an object by comparing the relative percentages of a radioactive (parent) isotope and a stable (daughter)isotope radiometric dating
an atom that has the same number of protons (or the same atomic number) as other atoms of the same element do but that has a different number of neutrons (and thus a different atomic mass) isotope
the sum of the numbers of protons and neutrons in the nucleus of an atom mass number
the disintegration of an unstable atomic nucleus into one or more different nuclides, accompanied by the emission of radiation, the nuclear capture or ejection of electrons, or fission radioactive decay
an isotope that has an unstable nucleus and that emits radiation radioactive isotope
the time required for half of a sample of a radioactive isotope to break down by radioactive decay to form a daughter isotope half-life
a microscopic spherical structure composed of many protein molecules that are organized as a membrane microsphere
a mass of droplets of colloidal substances, such as lipids, amino acids, and sugars, that are held together by electrostatic attration coacervate
Created by: fasolak16
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