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26 Cards in this Set
- Front
- Back
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products
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The "results" of a chemical reaction
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reactants
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the substances that start a chemical reaction
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Law of Conservation of Mass
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states no mass is lost during a reaction
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physical change
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change in size, shape, color , or state of matter
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chemical change
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results in new substances being produced
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nucleus
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part of the atom containing protons and neutrons
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proton
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positively charged particle in the atom
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neutron
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particle in the atom with no charge
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electron
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negatively charged particle in the atom
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Bohr model
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method of representing an atom
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anion
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- charge, usually non-metals
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cation
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+ charge, usually metals
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atomic number
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equal to proton number
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atomic mass
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equal to protons plus neutrons
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metal
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elements to the left of the stairstep
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non-metal
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brittle, solid, doesn't conduct heat or electricity
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transition elements
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group 3-12 on the periodic table
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group
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vertical columns on the periodic table
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period
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horizontal rows on the periodic table
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periodic table
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shows elements arranged by increasing atomic number
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ionic bond
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bond resulting from electrons being lost or gained
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covalent bond
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bond resulting from shared electrons
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valence electrons
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number of electrons an atom has to gain, lose, or share
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polyatomic ion
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charged groups of covalently bonded ions
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"poly"
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many, much
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"ic"
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of, relating to
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