Mahoney - Atomic Structure Notes Pulse Check

5 Questions | Total Attempts: 205

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Mahoney - Atomic Structure Notes Pulse Check

Questions and Answers
  • 1. 
    What are most atoms made of?
    • A. 

      Molecules

    • B. 

      Water

    • C. 

      Protons, neutrons and electrons

    • D. 

      None of the above

  • 2. 
    What is the charge given to electrons?
    • A. 

      Negative

    • B. 

      No charge

    • C. 

      Positive

    • D. 

      None of the above

  • 3. 
    Which of the following has the smallest mass?
    • A. 

      Proton

    • B. 

      Electron

    • C. 

      Neutron

    • D. 

      They all have the same mass and there is no difference

  • 4. 
    Sodium is an element that makes up table salt.  Its atomic number is 11 and its atomic mass is 22.999.  How many neutrons does this Sodium atom have?
    • A. 

      10

    • B. 

      11

    • C. 

      12

    • D. 

      13

  • 5. 
    Using the sodium: Atomic number of 11 and Atomic Mass of 22.999; how many electrons would Sodium have?
    • A. 

      10

    • B. 

      11

    • C. 

      12

    • D. 

      13

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