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21 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Matter
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Anything that has both mass and volume.
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Atomic Number
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the number of protons or electrons in an atom
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Atomic Mass or Mass Number
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the number of protons + the number of neutrons in an atom
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the number of particles found in the nucleus of an atom
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Nucleus
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the center of an atom containing protons and neutrons
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protons
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positively charged particle
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Neutrons
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particles with NO charge
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circling the nucleus
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electrons
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very very tiny negatively charged particles
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metals
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elements that are good conductors of heat and electricity
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nonmetals
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elements that are poor conductors of heat and electricity
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metalloids
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elements with some characteristics of metals and some of nonmetals
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Atoms
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The arrangement of the atoms give matter it's characteristics and properties
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physical and chemical properties are used to identify a substance and predict how it will behave
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Physical Properties
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Characteristics that can be observed or measured with out changing the identity of the material
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density length color shape mass volume melting point boiling point
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Chemical Properties
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any property that produces a change in composition of matter
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A substance ability to combine or react with other substances
change in color gas production rust or tarnish |
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element
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a substance that cannot be broken down into simpler substances. something made of onlt one kind of atom
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the smallest part of an element that still has the properties of that element
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Compound
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A substance made up of atoms of 2 or more elements that are chemically combined. They alwayscombine in the same ratio. Compunds have properties that are different from the properties of their single atoms
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elements and conpounds are pure substances
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Mixture
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a combination of two or more pure substances that are not chemically combined
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Heterogeneous Mixtures
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are not distributed or spread out evenly. You can see the different parts of the mixtures
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candy assortment
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Homogeneous mixture
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are evenly distributed and you cannot see the different parts of the mixture
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gatorade
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Solid
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define shape and volume
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state of matter
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liquid
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change shape but not volume.
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state of matter
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gas
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change both shapr and volume
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state of matter
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