Set: Chem A Final Review

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All 21 Terms

Term Definition
scientific theory a well tested thing that tells you why something happens
scientific law tells you what will happen always
atom smallest particle made up of protons, neutrons and electrons
elements the basic types of atoms that make up everything on earth
ionic compound made up of a metal and a nonmetal element
precision doing something the same every time
accuracy how close to the actual you are
compound elements bonded together to form something
periodic law periodic repition by atomic number
common acids all start with hydrogen
ions different amount of neutrons than normal element
STP Standard Tempurature Pressure
heterogeneous makes a solution
homogenous same throughout, all one type
isotopes different variations of an element
kilo 1000
centi 100
plum pudding model model describing atoms as a mixture with electrons placed throughout
planetary model described an atom as an atom with electrons in an orderly orbit that was always the same
Quantum mechanical model described atoms as having a cloud of probability for the electrons surrounding it
gold foil experiment experiment involving shooting alpha particles at gold foil and observing them going through and bouncing off determining that the nucleus of an atom has a positive charge.

Set Information

Terms 21
Creator Dapples
Created November 3, 2007
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Subjects None
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Description

To study for Chem A final

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Most Missed Words

  1. ionic compound → made up of a metal and a nonmetal element - 4 misses
  2. precision → doing something the same every time - 2 misses
  3. homogenous → same throughout, all one type - 2 misses
  4. accuracy → how close to the actual you are - 1 miss
  5. periodic law → periodic repition by atomic number - 1 miss
  6. common acids → all start with hydrogen - 1 miss
  7. ions → different amount of neutrons than normal element - 1 miss