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27 Cards in this Set
- Front
- Back
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SMALLEST PARTICLE OF AN ELEMENT THAT RETAINS THE PROPERTIES OF THE ELEMENT
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ATOM
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NUMBER OF PROTONS IN THE NUCLEUS OF AN ATOM
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ATOMIC NUMBER
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TOTAL NUMBER OF PROTONS AND NEUTRONS IN AN ATOM
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MASS NUMBER
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SUBATOMIC PARTICLE WITH A NEGATIVE ELECTRICAL CHARGE AND HARDLY ANY MASS
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ELECTRON
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ARRANGEMENT OF ELECTRONS AROUND THE ATOM'S NUCLEUS BASED UPON THE ENERGY OF THE ELECTRONS
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ENERGY LEVEL
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a mixture in which one substance is uniformly (evenly) dispersed in another substance
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SOLUTION
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subatomic particle with a positive electrical charge and a mass of ONE
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PROTON
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THE CENTRAL CORE OF AN ATOM.. small region in the center of an atom containing the protons and neutrons
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NUCLEUS
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SUBATOMIC PARTICLE WITH NO ELECTRICAL CHARGE AND a mass of ONE
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NEUTRON
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BASIC UNIT OF AN ELEMENT THAT CAN ENTER INTO CHEMICAL COMBINATION
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ATOM
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ARRANGEMENT OF THE ELEMENTS IN TABLE FORM
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PERIODIC TABLE
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two or more elements chemically bonded into a new substance
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COMPOUND
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a material that contains two or more substances that are not chemically bonded
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mixture
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A HORIZONTAL ROW OF THE PERIODIC TABLE
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PERIOD
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THE ELEMENTS IN A VERTICAL COLUMN OF THE PERIODIC TABLE
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GROUP
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TWO OR MORE ATOMS HELD TOGETHER BY CHEMICAL BONDS --- DEFINITE RATIO OF ATOMS
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MOLECULE
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ELEMENTS THAT ARE USUALLY POOR CONDUCTORS OF HEAT AND ELECTRICITY
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NONMETALS
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ELEMENTS THAT ARE GOOD CONDUCTORS OF HEAT AND ELECTRICITY AND HAVE A TENDENCY TO LOSE ELECTRONS IN CHEMICAL REACTION
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METALS
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a basic substance that cannot be broken down into a simpler form by ordinary chemical means
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element
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smallest unit of a compound retaining the compound's properties
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molecule
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the region around the nucleus that includes all the energy levels
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electron cloud
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a charged atom that has gained or lost electrons and thus has an electrical charge
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ion
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measure of how much gravity is pulling on an object
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weight
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anything that takes up space
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matter
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the amount of matter (stuff) in an object
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mass
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a characteristic that can be observed or measured without changing the composition of the object
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physical property
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a characteristic that describes how a substance interacts with other substances to produce different kinds of matter
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chemical property
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