Glossary

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stoichiometric coefficient: The number that precedes the formula of a species in a balanced chemical equationA representation of a chemical reaction in which chemical symbols represent reactants on the left side and products on the right side.; gives the relative number of chemical formulaA represention of the elemental composition of a substance; subscripts are used to indicate the relative numbers of atoms of each kind of element present. units or the relative chemical amount (moles) of each species that is consumed or formed.

Term of the Day

Abbreviation for curieA unit of radioactive decay; equal to 3.70 x 1010 disintegrations per second; abbreviated Ci., a unitA particular measure of a physical quantity that is used to express the magnitude of the physical quantity; for example, the meter is the unit of the physical quantity, length. of radioactiveDescribes a substance that gives off radiation‐alpha particles, beta particles, or gamma rays‐by the disintegration of its nucleus. decay; equal to 3.70 x 10¹⁰ disintegrations per second.