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43 Cards in this Set
- Front
- Back
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Alkali metal
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A metal in group IA of the periodic table- Li, Na, K, Rb, Cs, or Fr
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Alkaline earth metal
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A metal in group IIA of the periodic table- Be, Mg, Ca, Sr, Ba or Ra
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Chemical change
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A chemical reaction
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Chemical reaction
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A change in which the composition or structure of one or more substances is altered
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Chemistry
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The study of the interaction of matter and energy and the changes that matter undergoes
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Coinage metal
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An element in of periodic group IB- Cu, Ag, or Au
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Compound
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A chemical compound of elements that has a definite composition and its own set of properties.
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Definite composition
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The given ratio by mass of each element in a compound to any other element in the compound
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Dissolve
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To go into solution, making a homogeneous mixture
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Ductile
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Capable of being drawn into a wire
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Element
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A substance that cannot be broken down into simpler substances by chemical means; one of the basic building blocks of which all matter is composed
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Energy
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The capacity to do work
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Extensive property
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A characteristic that depends on the quantity of the sample
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Family
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A column in the periodic table, which includes elements with similar chemical properties; a periodic group
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Formula
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A combination of symbols and subscripts that identifies the composition of an element, compound, or ion
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Group
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A column in the periodic table, which includes elements with similar chemical properties: a family
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Halogen
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An element of periodic group VIIA- Florine, Chlorine, Bromine, Iodine, or Astatine
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Heterogeneous mixture
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A physical combination of substances having distinguishable parts
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Homogeneous mixture
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A physical combination of substances whose parts are not distinguishable, even with he best optical microscope; a solution
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Hypothesis
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A proposed explanation for a body of observed facts
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Inner transition element
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An element with atomic number 58-71 or 90-103; a member of the lanthanide or actinides series
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Intensive property
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A characteristic such as color that does not depend on the quantity of material present
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Law
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A generalized statement that summarizes a collection of observations
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Law of conservation of energy
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Energy an be neither created no destroyed in any chemical or physical process
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Law of Conservation of mass
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Mass can be neither created or destroyed in any chemical or physical process
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Main group element
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An element of one of the periodic groups labeled A, which extend up to the first or second period of the periodic table
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Malleable
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Capable of being pounded into various shapes
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Mass
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A fundamental characteristic of a sample of matter that quantifies its attraction to the earth (weight) and its resistance to a change in its motion (inertia)
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Matter
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Anything that has mass and occupies space
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Metal
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An element near the dividing line between metals and non metals on the periodic table, which pas properties of both metals and non metals
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Metalloid
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An element near the dividing line between metals and non metals on the periodic table, which has properties of both metals and on metals
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Mixture
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A physical combination of substances that has an arbitrary composition and properties characteristic of its components
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Noble gas
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An element of period group 0- He, Ne, Ar, Kr, Ze, or Rn
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Nonmetal
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Hydrogen or any element on the right in the periodic table
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Period
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One of the seven horizontal rows of the periodic table
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Periodic table
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An assemblage of elements in order of atomic number with elements having similar chemical properties aligned in vertical columns
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Physical change
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A process in which no change in composition occurs
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Property
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A characteristic of substance
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Quantitative property
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A property that is measurable
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Solution
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A homogeneous mixture
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Transition element
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Any element in the groups that start in the fourth period of the periodic table, having atomic number 21-30 39-48 57 72-80 or 104 or higher
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Symbol
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A one or two letter representation of an element
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Theory
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A generally accepted explanation for a law or series of observations
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