Choose the correct answer for each question. If you do not get the right answer the first time, keep trying.

1. How many protons are in an atom of Cobalt-60?

   1.   ?    60
   2.   ?    33
   3.   ?    27
   4.   ?    58.9332

2. How many neutrons are in an atom of Cobalt-60?

   1.   ?    60
   2.   ?    33
   3.   ?    27
   4.   ?    58.9332

3. What changes between different isotopes of the same element?

   1.   ?    The neutrons
   2.   ?    The protons
   3.   ?    The electrons
   4.   ?    The average atomic mass

4. The isotope of carbon that is used for dating objects contains 8 neutrons. Which isotope is it?

   1.   ?    Carbon-8
   2.   ?    Carbon-12
   3.   ?    Carbon-13
   4.   ?    Carbon-14
   5.   ?    Carbon-20

5. The smaller number in an element's box on the periodic table lists that element's:

   1.   ?    Number of neutrons
   2.   ?    Isotopic Mass
   3.   ?    Atomic Mass
   4.   ?    Atomic number

6. The smaller number in an element's box on the periodic table also tell you that element's:

   1.   ?    Number of protons.
   2.   ?    Number of neutrons.
   3.   ?    Isotopic Mass
   4.   ?    Atomic Mass

7. For a neutral (uncharged) element, the number of electrons is equal to the:

   1.   ?    Number of protons
   2.   ?    Number of neutrons
   3.   ?    Isotopic Number
   4.   ?    Atomic Mass

8. The larger number in an element's box on the periodic table represents that element's:

   1.   ?    Number of neutrons
   2.   ?    Isotopic Mass
   3.   ?    Average Atomic Mass
   4.   ?    Number of protons