Term Definition
Element Pure substance made of only one atom
Atom Smallest particle of matter
Melting S to L
Evaporation L to G
Condensation The conversion of a vapor or gas to a liquid.
Freezing The freezing point of water.
Sublimation When anything solid turns into a gas without first becoming liquid,
Deposition The direct solidification of a vapor by cooling.
Protons Inside the nucleus and have a positive charge
Neutrons found inside the nucleus
Electrons Outside the nucleus and have a negative charge.
Metalloids Group of can be meters and nonmetals
Metals Group that are good conductors of heat and electricity are malleable and ductile and have luster
Density amount of mass in a certain volume
Luster Shine
Chemical Symbol chemical symbol. noun. an abbreviation or short representation of a chemical element; the symbols in the periodic table. Natural elements all have chemical symbols of one or two letters; some manmade elements have three-letter symbols.
Ductile (of a metal) able to be drawn out into a 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
Malleable (of a metal or other material) able to be hammered or pressed permanently out of shape without breaking or cracking.
Atomic number Number of protons and electrons inside the atom
Atomic Theory The study of the atom

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