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Ch. 12

Atom Smallest particle of an element the still has the properties of that element.
Chemical fromula A shorthand way to describe the chemical make up of a compound.
Chemical reaction Process in which one or more substances are changed into one or more different substances.
Chemical symbol Letter or letters that abbreviate an elements name.
Compound Substance made of two or more elements that are chemically combined.
Electron Particle in an atom that has negative charge.
Element Substance that can not be broken down into another substance.
Molecule Two or more atoms joined together by a chemical bond.
Neutron Particle in the nucleus of an atom that has no charge.
Nucleus Central core of an atom.
Periodic table Standardized table that organizes the elements by their properties.
Proton Particle in nucleus of an atom that has positive charge.
Created by: 23ld6369