Name _______________________

Location/Day _________________

 

  1. I am an atom. I have 15 protons in my nucleus. Therefore, I am an atom of the element ____________.

    2.  

  2. What is the difference between a mixture and a compound?

    3.  

  3. Are most elements metals, or nonmetals?

    4.  

  4. Name an element that is a semiconductor: ______________________

    5.  

  5. Name a halogen: _____________________

    6.  

  6. Are noble gases reactive ___ or non-reactive ___ ?

    7.  

  7. An atom of potassium (symbol: K) and an atom of bromine (symbol: Br) react. In the process, potassium totally loses an electron, and bromine gains it. The bond that they now share is: (chose one):

    8. ___ ionic ___ nonpolar covalent ___ polar covalent

  8. If I taste something that is bitter, it is probably

    9. ___ acidic ___ basic ___ impossible to tell

     

  9. I have a sink full of liquid. My handy pH meter reads 13. Thus, I know that the stuff in the sink contains (choose one):

    10. ___ strong acid ___ weak acid ___ probably just water ___weak base

    ___ strong base ___ cannot tell

     

  10. My pots and pans tend to gunk up with a hard-to-remove white scale. Therefore, I know my water is probably:

___ hard ___ neutral ___ soft