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    Jeannette Myers's Avatar
    Jeannette Myers Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 7, 2007, 08:52 AM
    1. The total number of protons and neutrons in the nucleus of an atom is its:
    a. atomic number c. mass number
    b. Avogadro constant d. number of neutrons

    2. As the mass number of the isotopes of an element increases, the number of protons
    a. decreases c. remains the same
    b. increases d. doubles each time the mass number increases

    3. As the atomic number increases, the number of electrons in an atom.
    a. decreases c. remains the same
    b. increases d. in undetermined

    All atoms of the same element have the same
    a. atomic mass c. mass number
    b. number of neutrons d. atomic numder
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
    		  
    #2

    Mar 7, 2007, 08:54 AM
    Please refer to THIS ANNOUNCEMENT
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
    Uber Member
    		  
    #3

    Mar 7, 2007, 10:04 AM
    Atom - Wikipedia, the free encyclopedia
    Periodic table - Wikipedia, the free encyclopedia
    Isotope - Wikipedia, the free encyclopedia
    Atomic number - Wikipedia, the free encyclopedia

    I'm fairly certain that readcing these links will take you much longer than reading your notes, which is the easiest way to do this.
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