Atoms, The Nucleus And The Mole

9 Questions | Total Attempts: 41

SettingsSettingsSettings
Please wait...
Atom Quizzes & Trivia

Chemistry students, assemble! Today we’ll be having a look at a number of different topics under the overall study of nuclear chemistry, including atoms, the nucleus and the mole. Do you have a firm enough grip on each of these topics? Take this quiz and find out!


Questions and Answers
  • 1. 
    Which of the following has an odd number of both protons and neutrons?
    • A. 

      Helium-4

    • B. 

      Lithium-7

    • C. 

      Boron-10

    • D. 

      Carbon-13

  • 2. 
    If you have 5g each of Li, Na, K, and Rb, for which element will you have the largest number of moles?
    • A. 

      Lithium

    • B. 

      Sodium

    • C. 

      Potassium

    • D. 

      Rubidium

  • 3. 
    If you have three times the mass of carbon as you have helium, which of the following is true?
    • A. 

      You have nearly equal numbers of carbon atoms as helium atoms.

    • B. 

      You have more atoms of carbon.

    • C. 

      You have more atoms of helium.

    • D. 

      You cannot know a relationship between carbon atoms and helium atoms.

  • 4. 
    In positron emission, what is the resulting change in the nucleus?
    • A. 

      Atomic number increases by 1.

    • B. 

      Atomic number decreases by 1.

    • C. 

      Atomic number decreases by 2.

    • D. 

      Atomic number stays the same.

  • 5. 
    Who discovered the charge to mass ratio for electrons?
    • A. 

      J.J. Thomson

    • B. 

      Ernest Rutherford

    • C. 

      John Dalton

    • D. 

      Robert Millikan

  • 6. 
    Which of the following pairs of compounds could be used to explain the law of multiple proportions?
    • A. 

      H2O and H2O2

    • B. 

      CH4 and CO2

    • C. 

      NaCl and KCl

    • D. 

      SO3 and H2S

  • 7. 
    What experiment resulted to the discovery of the nucleus?
    • A. 

      Gold foil (or alpha scattering) experiment

    • B. 

      Cathode ray tubes

    • C. 

      Oil drop experiment

    • D. 

      Mass spectroscopy

  • 8. 
    How many electrons are in a magnesium-24 with a charge of 2+?
    • A. 

      10

    • B. 

      12

    • C. 

      14

    • D. 

      22

  • 9. 
    How are ions formed?
    • A. 

      By gaining or losing electrons

    • B. 

      By gaining or losing protons

    • C. 

      By beta decay

    • D. 

      By positron emission