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DSMS Chemistry

TermDefinition
density the ratio of the mass of a substance to its volume
liquid a state of matter that has a definite volume but not a definite shape
solid a state of matter that has a definite shape and volume.
gas a state of matter that does not have a definite volume or shape
chemical change a change that occurs when one or more substances change into an entirely new substance with different properties
physical change a change of matter from one form to another without a change in chemical properties
melting the change of state in which a solid becomes a liquid
volume the amount of space an object takes up
mass the amount of matter in an object
matter anything that has mass and takes up space
weight the amount of gravitational force exerted on an object
physical property a characteristic of a substance that does not involve a chemical change
chemical property a property of matter that describes its ability to participate in chemical reactions
evaporation the change of state in which a liquid becomes a gas
freezing the change of state in which a liquid becomes a solid
deposition the change of state in which a gas becomes a solid
sublimation the change of state in which a solid becomes a gas
condensation the change in state in which a gas becomes a liquid
element a pure substance that cannot be separated or broken down into simper substances
metal an element that is shiny and conducts heat and electricity well
nonmetal an element that does not conduct heat or electricity well
metalloid an element that has properties of both metals and nonmetals
periodic table of the elements a chart showing the arrangement of elements based on a repeating pattern of their chemical properties
proton a positively charged subatomic particle in the nucleus of an atom
electron a negatively charged subatomic particle orbiting the nucleus
neutron a subatomic particle in the nucleus that has a neutral charge
electron cloud the area around the nucleus where electrons quickly orbit
compound a substance made of two or more elements
molecule a group of atoms bonded together
atom the smallest unit of an element
Created by: csimpson