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37 Cards in this Set
- Front
- Back
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decay
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break down
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isotopes
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atoms of an element with a different number of electrons
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mass number/ atomic mass
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equals number of protons + neutrons ( bottom # on PT)
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atomic #
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# of protons
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subatomic particles
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protons, neutrons,electrons
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neutron
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neutral charge found in nucleus to find out the # atomic mass- atomic # = neutron
1 amu |
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proton
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positive charge
found in nucleus to find # look at atomic # |
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electron
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negative charge
found in energy levels find # in atomic # |
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atom
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smallest unit of an element
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molecuel
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a combination of 2 or more atoms that combine in a definite ratio
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compound
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a substance made up of atoms of different elements that chemically combine
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element
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a substance that can not be seperated or broken down
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matter
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anything that has volume and mass
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cation
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positive charged atom
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ion
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a charged atom
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anion
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negative charged atom
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resistance
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material that slows floe of electrons
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current
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flow of electrons
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voltage / potential difference
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push of electrons
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circuit
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closed path wich electrons flow
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insulator
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doesn't allow electrons to move through
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conductor
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allows easy electron flow
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static discharge
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the movement of electrons to relieve a seperation in charge
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electric field
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force exerted by an electron on anything with an electric charge
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static electricity
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electric charge by an object
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left side of PT
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metals
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right side of PT
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non metals ( boron, carbin,nitrogen,oxygen,Halogens,Nobel gases)
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radiation
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the emission of energy
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half life
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the time taken for a subatomic particle to fall half of its original value
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frequency
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the rate at which a vibration occurs
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wave
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a disturbance that travels through a medium
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geothermal energey
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heat from the ground
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biomass
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energy from burning animal or plant waste
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fossil fuels
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energy from past animal remains
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wind energy
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energy from uneven heating of the earth
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like charges
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charges alike that repel
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unlike charges
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chares that are un alike that attract eachother
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