Term Definition
Element Pure substance made of only 1 atom
Atom Smallest partical that makes up matter
Melting when a solid turns into liquid
evaporation A liquid turning into a gas
condensation A gas to a Liquid
frezzing Liquid into a solid
sublimation solid into a gas
desoping gas into a solid
protons positive charge, located in the neutrons
Electrons Negative charge, Located outside of the neutrons
Neutrons no charge, located outside the nucleus with the protons
malleable Able to be hammered or pressed permanently out of shape without breaking or cracking
atomic number Number of protons and electron in an atom
density Amount of matter in a certain space
metalloids groups of can be like metals and nonmetals
metals group that are good conductors of heat and electricity, are malleable and ductile and have luster
luster describes the way a mineral reflects light from its surface; can be metallic or nonmetallic.
chemical symbol A short way of writing the element name
ductile able to be drawn out into a thin wire.
corrositve property of metals=rusting
atomic mass he mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom or to the average number allowing for the relative abundances of different isotopes.
nonmetals group that are poor conductors of heat and electricity and brittle
Atomic Theory The study of atoms

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