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18 Cards in this Set

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Nuclear Fission
The splitting of the nucleus of an atom, releasing great amounts of energy.
Radioactive Element
An element made up of atoms where nuclei break down,or decay, into nuclei of other atoms.
Chemical Bond
A force, or link, That holds atoms together in a molecule or in a crystal.
Physical Change
A change in size,shape,or state of matter.
Base
A compound that turns red litmus paper blue.
Indicator
A substance that changes color when mixed with an acid or base.
Acid
A compound that turns blue litmas paper red.
Electron
A negetively charged particle in an atom.
Salt
A compound that can be formed when an acid reacts with a base.
Ion
An electrically charged atom.Ions form when atoms lose or gain electrons.
Polymer
A compound consisting of large molecules formed from many smaller, linked molecules.
Model
Something used to represent an object.
Nuetralization
The reaction between an acid and a base.
Chemical Change
A change in matterthat results in new substances with new properties.
Nuetron
A particle in the nucleus of an atom that has no elctric charge.
Nucleus
The dense, central part of an atom.
Proton
A positively charged particle found in the nucleus of an atom.
Atomic Number
The number of protons in the nucleus of an atom of an element.