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Atom study guide Questions and Answers
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Exam of 2 pages for the course Atom at Atom (Atom study guide)
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Atom study guideWhat is an atom? - answer Atoms are the smallest unit of matter
What was the contribution of Democritus to our understanding of the atom? - answer
Democritus first named the atom Atomos
What was the contribution of Dalton to our understanding of the atom? - answerAll
substances are made up of matter, atoms cannot be created, destroyed, or divided
Atoms of the same element are the same and elements of different elements are
different
Atoms will join with other atoms to make new substances
What was the contribution of Thomson to our understanding of the atom? What was the
experiment that Thomson performed? - answerThomson first named the electron.
Experiment was the Cathode-Ray Tube experiment
What was the contribution of Rutherford to our understanding of the atom? What was
the experiment that he performed? - answerRutherford first named the Nucleus and
stated that most of the atom was empty space Experiment was the gold Foil experiment
What was the contribution of Bohr to our understanding of the atom? - answerBohr
stated that electrons moved in specific paths around the Nucleus
What was the contribution of Schrodinger and Heisenberg to our understanding of the
atom? - answerSchrodinger and Heisenberg stated that electrons moved in clouds
around the nucleus and not in specific paths
What does the Model of the Atom look like for Thomson? - answer
What does the Model of the Atom look like for Rutherford? - answer
What does the Model of the Atom look like for Bohr? - answer
What is different between the model of the atom for Bohr & The current ELECTRON
CLOUD MODEL? - answerBohr model had electrons moving in paths around the
nucleus
If you have an equal number of protons and electrons what is the charge? -
answerWhen protons equal electrons the charge is neutral or zero
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