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Episode 6 The Atom
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tarix | 22.05.2018 | ölçüsü | 8,55 Kb. | | #45347 |
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The World of Chemistry
Episode 6 - The Atom
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What are the three basic components (particles) that make up an atom?
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What are the two regions of any atom?
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How does the size of the nucleus compare to the size of an atom?
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What is the Scanning and Tunneling electron Microscope (STM) used for?
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What holds the electrons and the nucleus together?
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Unlike charges _______________; like charges _________________. .
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What are the charges on the electron ________, the proton ________, and the neutron ________?
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Why is the overall charge of the atom neutral?
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What did Rutherford's gold foil experiment show?
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When two atoms meet, what parts of the atoms interact?
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What are some ways that signals from the atom can be used?
Answer Key
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What are the three basic components (particles) that make up an atom?
Protons, neutrons, electrons
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What are the two regions of any atom?
The nucleus and the electron cloud
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How does the size of the nucleus compare to the size of an atom?
The average atom is 10,000 larger in diameter than the nucleus.
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What is the Scanning and Tunneling electron Microscope (STM) used for?
It provides 2 and 3 dimensional images of atoms.
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What holds the electrons and the nucleus together?
Electrical charge
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Unlike charges attract ; like charges repel .
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What are the charges on the electron negative , the proton positive , and the neutron neutral ?
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Why is the overall charge of the atom neutral?
# protons = # electrons
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What did Rutherford's gold foil experiment show?
The nucleus contains most of the atoms mass and has a positive charge.
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When two atoms meet, what parts of the atoms interact?
The electrons
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What are some ways that signals from the atom can be used?
They can be used to determine the number and types of atoms present.
Episode 6 – The Atom
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