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21 Cards in this Set
- Front
- Back
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Physical Reaction
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entire atom is involved
example: boiling water |
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Chemical Reaction
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change in bonding between two atoms
example: burning |
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Radio Active Reaction
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change in nucleus of an atom
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Radio Active Energy
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energy that decays
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Half Life
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the length of time it takes for half the atoms of a radio active element to decay
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Atomic Mass
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the number of protons and neutrons in an atom
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Atomic Number
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defines the element
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Protons
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in the nucleus positive charge
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Neutron
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in the nucleus neutral charge
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Electron
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negative charge
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Energy Levels
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the place where electrons are around the nucleus
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Nano Technology
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small scientific advances that help people
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Isotope
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a variation of an element where the neutrons are different from the original
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Carbon 14
C14 |
a radio active element that has a half life of 5770 years and used to find absolute time
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Nitrogen
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?
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Uranium
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determines the age of very old rock and has a half life of 4.5 billion years
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Lead
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the decay element of carbon 14
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Radio Active Decay
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the decay of a radio active element like carbon 14 which decays into lead
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Radio Active Element
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the element which is radio active
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Decay Element
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The element that it decays into like carbon 14 decays into lead. Lead is the decay element
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Quark
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particle that is the building block of protons and neutrons
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