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28 Cards in this Set
- Front
- Back
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anion
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a negatively charged atom
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atom
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the smallest particle of matter
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atomic mass
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the mass of an element. equal to the number of protons and neutrons
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cation
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a posotivly charged atom
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coefficient
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the number placed in fron of a chemical formula
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combination reaction
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when two small substances combine to make on larger one
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combustion reaction
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a reaction were a suvstance combines with oxygen to make Co2 and H2O
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compound
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two or more elements that are chemically charged
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decompostion reaction
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when on larger substance breaks down into two smaller substances
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double replacement reactin
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when two binary compounds break apart and switch posotive ions with eachother
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electron
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the negativly charged part of an atom
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electron configureation
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shows where elecrtons are found in atom
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element
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a pure substance made of one kind of atom
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ion
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a charged atom, negative or posotive
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matter
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what everything is made of. Anything that takes up space
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metal
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elements found on the left side of the periodic table. usually form postivie ions
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neutral atom
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when the number of protons equal the number of electons. total charge is zero
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neutron
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particle in the nucleaus of an atom that has no charge
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noble gas
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elements found in group 8 of the periodic table that do not react with anything
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nonmetal
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elements found on the right side of the periodic table. usually form negative ion
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nucleus
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the center of an atom that sontains protons and neutrons
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orbitals
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a space were electrons are found outside the nucleaus
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products
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what is made in a chemical reaction
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proton
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particle in the nucleaus of an atom that has a postive charge
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reactants
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the ingredients in a chemical reaction
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single replacement reactin
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when a binary compound breaks apart. half of it combines with a single element. the other half stays by itself
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subatomic particles
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the three particles that make an atom (proton, nuetron, and electon)
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valence electrons
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electrons on the outside of an atom that are involved in a chemical reaction
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