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26.17: Q

Difficulty Level: At Grade Created by: CK-12
qualitative observation
observation that yields descriptive, nonnumerical results
quantitative observation
observation that yields meaningful, numerical results
quantum (singular form of quanta)
small unit of energy
quantum mechanics
the branch of physics that deals with the behavior of matter at the atomic and subatomic level
quantum numbers
four special numbers that completely describe the state of an electron in an atom
quantum theory
the theory that energy can only exist in discrete amounts (quanta)
quark
physical particles that form one of the two basic constituents of matter; various species of quarks combine in specific ways to form protons and neutrons, in each case taking exactly three quarks to make the composite particle

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Feb 23, 2012
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Mar 26, 2015
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CK.SCI.ENG.SE.2.Chemistry-Glossary.26.17