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Matter

Atoms, Elements, Molecules

TermDefinition
element a matter that is made up of only one kind of atom
neutron neutral subatomic particle in the nucleus of an atom
proton positive charged subatomic particle in the nucleus of an atom
electron negative charged subatomic particle that orbits the nucleus in energy levels
atom the smallest part of an element that is still the element
atomic number the number of protons in the nucleus of an atom
matter anything that has mass and takes up space
chemical change a change that results in an entirely new substance with different properties
physical change a change in matter that does not change the chemical composition of the matter - different shape, heating, cooling, melting, freezing
magnetic able to be attracted by a magnet
conductivity a substance's capability of transmitting light, heat, electricity, or sound
substance something made up of only one material such as water
properties physical or chemical characteristics of matter used to describe or identify a substance
 



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