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15 Cards in this Set

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