Term Definition
Element Pure substance made of only one atom
Atom Smallest particle of matter
Protons Inside the nucleus and have a positive charge
Malleable Metals can be flattened without crumbling
Atomic Number Numbers of protons and electrons in an atom
Density Amount of mass in a certain matter
Metalloids Group of can be like metals and nonmetals
Electrons Outside of the nucleus and have a negative charge
Metals Group that are good conductors of heat and electricity, are malleable and ductile and have luster
Luster Shine
Neutrons Found inside the nucleus have no charge
Chemical Symbol Abbreviation for chemical name
Ductile Metals can be drawn into the thin wire
Corrosive Property of metals=rusting
Atomic Mass How much a certain amount weighs
Nonmetals Group that are poor conductors of heat and electricity and are brittle
Deposition G to S
Sublimation S to G
Evaporation L to G
Melting S to L
Freezing L to S
Condensation G to L
Atomic Theory The study of atom

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