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Kuhn 6th Science U3

Kuhn 6th Science Unit 3 - Elements

TermDefinition
density amount of mass per unit volume of matter
mass amount of matter an object contains
volume amount of space an object contains
physical property property or characteristic of an object that can be observed
chemical property how a substance can react with another substance to form a third substance
electron negative charged particle
nucleus positively charged center of an atom
atomic number number of protons an atom has in its nucleus
mass number sum of the number of protons and neutrons
isotopes atoms having the same number of protons but a different number of neutrons
group vertical columns of elements
periods rows of elements
compound two or more elements combined chemically
ion an atom that has gained or lost an electron
catalyst substance that increase the reaction rate
synthesis reaction reaction that produce one new compound
decomposition reaction reaction that produces two elements
Created by: robinkuhn
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