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15 Cards in this Set
- Front
- Back
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what is conduction?
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transfer of energy between 2 objects that are touching
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what is convection?
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transfer of energy through the movement of a large number of particles
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what is radiation?
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transfer of energy thorugh EM waves across space
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conductors vs. insulators
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low specific heat and high specific heat "trap energy"
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who is Crookes?
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british guy who used battery and glass vacume and there was a green glow
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history of atom?
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2400 years ago- greeks
smallet unit of matter- "matter" |
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who is J.J Thompson?
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He discovered the atom; won nobel prize in 1906; green glow was charged energy which were electrons and the energy given off was radiation
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Becquerel and three type of radiation
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alpha, beta, gamma
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Rutherford and the gold foi experiment, discovery of neucleus and proton?
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discovered the solar system model
-electrons have orbits, distinct levels and are in pairs |
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calculating # of protons, neutrons and electrons
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Number of Protons = Atomic #
number of Electrons = # of Protons = Atomic # # of neutrons= Mass Number - Atomic Number |
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group vs. period in periodic table
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group/family - verticle column
period- horizontal row |
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valence eletrons
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located on the outermost shell of the atom
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organic compounds
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organisms
contain carbon |
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the bonds
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single- ends in ane 2n + 2
double- ene 2n - 2 triple- yne |
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major types of molecules in things
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lipds, carbs, proteins, nucleic acids
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