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Atomic Theroy

The Study of Atoms

TermDefinition
Element Pure substances make of only 1 atom
Atom Smallest particle that makes up matter
Melting Change of matter Solid to liquid.
Evaparation `Change of matter from a liquid to a gas
Condensation property of metals=rusting
Frezzing change of a matter from a liquid state to a solid state
Sublimation the process by which a solid changes directly into a gas
Deposition the process by which a gas changes into a solid.
Protons a positively charged elementary particle
Malleable able to be hammered or pressed permanently out of shape without breaking or cracking
Atomic Number is the number of protons found in the nucleus of an atom
Density amount of matter in a certain space.
Metalliods an element whose properties are intermediate between those of metals and solid nonmetals.
Electrons a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
Metals a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity.
Lusture describes the way a mineral reflects lights from its surface.
Neutrons a subatomic particle of about the same mass as a proton but without an electric charge
Chemical Symbol an abbreviation for the name of an element
Ductile able to be drawn out into a thin wire.
Corrosive tending to cause corrosion.
Atomic Mass the mass of an atom of a chemical element expressed in atomic mass units.
Non-Metals group that are poor conductors of heat and electricity and are brittle.
Atoms the basic unit of a chemical element.
Element each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter.
Compound a thing that is composed of two or more separate elements; a mixture.
Valence Electrons is an outer shell electron that is associated with an atom,
Mixture any substance that has a uniform and unchanging composition is considered to be pure
Created by: Jonna.Babii