Review
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| A molecule is | chemically combined
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| An example of a homogeneous mixture is | salt water
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| An example of a heterogeneous mixture is | concrete
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| The “best mixed” of all mixtures is a | solutions
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| The smallest particle of an element that has the properties of that element is a(an) | atom
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| a shorthand way of representing the chemical elements | Chemical symbols
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| The description of a chemical reaction using symbols and formulas is called a chemical | equation
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| A substance that is made up of more than one kind of molecule is called is a (an) | mixture
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| In sweetened tea, the sugar is called the | solute
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| A substance that dissolves in water is said to be | soluble
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| Water in salt water would be the | solvent
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| To increase the solubility of sugar in water you would increase or decrease the temp | increase
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| Electron's Charge | Negative
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| Positively charged particle in the nucleus of an atom is the | Proton
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| Neutron's Charge | Neutral
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| The number of protons in the nucleus of an atom is called the | atomic number
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| The sum of protons and neutrons in the nucleus of an atom is called the | atomic mass
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| The nucleus of an atom contains | protons and neutrons
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| These forces explains that there is a force of attraction between all objects in nature. | gravity
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| These forces explain repulsion and attraction. | electromagnetic
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| These forces are responsible for radioactivity decay. | Weak
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| These force hold proton together. | Strong
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| The number at the top of each square in the periodic table is the (= number of protons) | Atomic Number
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| The horizontal rows of elements in the periodic table are | periods
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| The elements to the left of the stair like dark line on the periodic table | Metals
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| Elements within the same vertical column | Family
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| The elements in a period are arranged in order by | # of electron Valences
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| Elements in the same family of the periodic table have | similar properties
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| The two rows that stand alone at the bottom of the periodic table are | rare-earth elements
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| The periodic table is arranged by all the known elements in order of | increasing atomic number
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| Most of the elements on the periodic table are | metals
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| The noble gases are inactive because | their outermost energy level is full
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| In chemical combinations, non-metals tend to | gain electrons
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| Share the properties of Metals and Non-metals | Metalloids
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| Elements in Group 15 would have how many valences electrons? | 5
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| Moving left to right on the periodic table the elements tend to | decrease in activity
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| Luster | Metal
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| Poor Conductors | Non-metal
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| Ductile / Malleable | Metal
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| Tend to rust or oxidize | Metals
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| Gain Electrons | Non-Metals
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| High Melting Point | Metals
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