Set: Science Test for Tuesday

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All 9 terms

TermDefinition
440 BCEDemocritus: The idea if an Atom. A Atom is not divisable
1803Dalton: Atomic Theory- all matter is made of atoms, which are indestuctable and indivisable
1863Mendeleev: Discovered the periodic table of elements. He used a periodic table of elements to list elements based on their atomic mass and their properties
1897Thompson: he figured out that Atoms are made of elctrons which are negative.
1909Rutherford: Gold Foil Experiment. found out that Thompson modle to be wrong. He discovered that proton- necleus is mostly empty space
1913Bohr: energy levels- paths of movement called energy levels predicted subatomic behavior. He also said that electrons went in a predictable path.
1914Moseley: Atomic Number is used to be more accurate then Meneleev. Also based on protons in attom - rearrange the Peridoic Table of Elements
1927Heisenberg: uncertainty principle- exact path of electrons cant be predicted. Also that Bohr's Model was incorrecct
1932Chadwick: nutrons are neutral particle. Hard to find because there is no way to catch a neutral particle

Set Information

Terms 9
Creator dustiewskrs
Created November 6, 2009
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Most Missed Words

  1. 1927 Heisenberg: uncertainty principle- exact path of electrons cant be predicted. Also that Bohr's Model was incorrecct - 7 misses
  2. 1803 Dalton: Atomic Theory- all matter is made of atoms, which are indestuctable and indivisable - 6 misses
  3. 1897 Thompson: he figured out that Atoms are made of elctrons which are negative. - 5 misses
  4. 1909 Rutherford: Gold Foil Experiment. found out that Thompson modle to be wrong. He discovered that proton- necleus is mostly empty space - 5 misses
  5. 1863 Mendeleev: Discovered the periodic table of elements. He used a periodic table of elements to list elements based on their atomic mass and their properties - 5 misses
  6. 1932 Chadwick: nutrons are neutral particle. Hard to find because there is no way to catch a neutral particle - 4 misses
  7. 440 BCE Democritus: The idea if an Atom. A Atom is not divisable - 2 misses