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B2 Ch 1 Lesson 2

Classifying Matter

Element A substance that cannot be broken down into any other substance by chemical or physical means.
Atom The basic particle from which all elements are made; the smallest particle of an element that has the properties of that element.
Chemical Bond The force of attraction that holds two atoms together.
Molecule A neutral group of two or more atoms held together by covalent bonds.
Compound A substance made of two or more elements chemically combined in a specific ratio, or proportion.
Chemical Formula Symbols that show the elements in a compound and the ratio of atoms.
Mixture Two or more substances that are together in the same place but their atoms are not chemically bonded.
Created by: Juchrin