The Atom - repel . 7. What are the charges on the electron...

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The Atom 1. What are the three basic components (particles) that make up an atom? Protons, neutrons, electrons 2. What are the two regions of any atom? The nucleus and the electron cloud 3. 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. 4. What is the Scanning and Tunneling electron Microscope (STM) used for? It provides 2 and 3 dimensional images of atoms. 5. What holds the electrons and the nucleus together? Electrical charge 6. Unlike charges attract ; like charges
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Unformatted text preview: repel . 7. What are the charges on the electron negative , the proton positive , and the neutron neutral ? 8. Why is the overall charge of the atom neutral? # protons = # electrons 9. What did Rutherford's gold foil experiment show? The nucleus contains most of the atoms mass and has a positive charge. 10. When two atoms meet, what parts of the atoms interact? The electrons 11. 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....
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This note was uploaded on 11/14/2011 for the course CHEM ch 101 taught by Professor - during the Fall '10 term at Montgomery.

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