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Chapter 9


A measure of the amount of matter in an object.


A measure of how gravity pulls on an object.


Any of a group of elements that conducts heat and electricity, has a shiny luster, and is flexible.


The center of an atom that has most of its mass.


A particle in the nucleus of an atom that carries one unit of positive electric charge.


A particle in the nucleus of an atom that has no electric charge.


A particle in the space outside the nucleus of an atom that carries one unit of negative electric charge.


A particle that contains more than one atom joined together.


The ability to be pulled into thin wires without breaking.


The gradual wearing away of a metal by combining with nonmetals in its environment.


A measure of how much space the matter of an object takes up.


A material that has properties in between conductors and insulators.

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