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BIOLOGY CHAP 2A:Chemistry of Life

Horizontales
Smallest unit of a compound which exhibits a compounds physical and chemical characteristics
Attraction between oppositely charged ions
Energy of motion
Subatomic particle in the nucleus with a positive charge
Expresses the number and type of elements within a compound
Shows the 3-D arrangements of atoms bonded together in a compound or molecule
Chemical bond between atoms where they share one or more electrons
Stored energy
Chemical reaction which requires/absorbs energy
Center region of an atom which contain protons and neutrons
Verticales
Subatomic particle outside of the nucleus with a negative charge
Substances which affect the rate of a chemical reaction but are not chemically changed themselves
Energy necessary to start a reaction
Pure substance formed by two or more atoms of different elements chemically bonded together
Subatomic particle in the nucleus with no charge
Chemical reaction which releases energy
Number of protons in an element's nucleus
Smallest unit of an element which exhibits characteristics of that element