Name:

Periodic Table Final Test I

  1. Atomic Structure (PS2A) I can describe protons, neutrons and electrons in terms of their relative charges, masses, and locations in an atom. For each of the sub-atomic particles, complete the table:
    Particle Name     Electron
    Symbol p+    
    Mass     ≈ 0 AMU
    Electric Charge   0  
    Location   nucleus
  2. Electron Shells (PS2B) I can predict the chemical properties of an atom given the number and arrangement of the electrons in the outermost shell of the atom.
    1. Elements that are very reactive (form compounds very easily) have ______ electrons in the outer shell.
      a. eight c. one
      b. zero d. 3 ½
    2. Elements that are not reactive (never form compounds) have ______ electrons in the outer shell.
      a. eight c. one
      b. zero d. 3 ½
  3. Protonic Table (PS2C-a) I can use the Periodic Table to identify an element based on the number of protons in an atom of the element.  
    1. The element ____________ has three protons in its nucleus.
    2. The element ____________ has six protons in its nucleus.
  4. Periodic Table (PS2C-b) I can explain the arrangement of the elements on the Periodic Table, including relationships among elements in the same column or the same row.
    1. The elements in the same column (group) all have the same
      a. atomic mass. c. number of electron shells.
      b. number of protons. d. number of outer shell (valence) electrons.
    2. The elements in the same row (period) all have the same
      a. atomic mass. c. number of electron shells.
      b. number of protons. d. number of outer shell (valence) electrons.
     
  5. Ionic Bonds (PS2D-a) I can explain how ions and ionic bonds are formed (e.g., sodium atoms lose an electron and chlorine atoms gain an electron, then the charged ions are attracted to each other and form bonds).
    1. An atom becomes an ion by
      a. studying hard in school. c. gaining or losing electrons.
      b. gaining or losing neutrons. d. becoming very cold.
    2. On the first line of the drawing below, draw an arrow to show the movement of electron(s) that will form the ionic compound lithium fluoride (LiF). The third line shows the completed chemical formula.
    3. On the second line of the drawing below, use the + and – symbols to show the ions formed after the electron(s) move(s).

  6. Ionic Formula (PS2D-b) I can explain (e.g. how many atoms of which elements) the meaning of a chemical formula for an ionic crystal (e.g., NaCl).
     

    The chemical formula MgCl2 means this is a compound formed by

    1. one magnesium atom and one chlorine atom.
    2. one magnesium atom and two chlorine atoms.
    3. two magnesium atoms and one chlorine atom.
    4. two magnesium atoms and two chlorine atoms.
  7. Isotope Structure (PS2J-a) I can draw and label a model of an isotope's atomic structure given the atomic number and atomic mass of the isotope.
    1. Complete the table:
      Element Lithium 6 Lithium 7 Lithium 8
      Atomic mass 6 7  
      Number of protons   3 3
      Number of neutrons   4  
      Isotope notation
       
       
      7Li  
       
    2. Complete the Bohr diagram of a lithium-7 atom. 
       
       
       
  8. Radioisotope Decay (PS2J-b) I can use a decay curve for a radioactive isotope to determine the age of the sample.
    1. The following is a radioactive decay graph of nitrogen-13. You are given a sample of nitrogen-13 that has 50% of the radioactive nuclei remaining. Use the decay curve to find the age of the sample.

      Age of the sample____________

    2. You are given a sample of nitrogen-13 that you've determined is 20 minutes old.

      What percent of the isotope is remaining? ________________

  9. Fission/Fusion (PS2K) I can distinguish between nuclear fusion and nuclear fission in terms of how each transforms elements present before the reaction into the elements present after the reaction.
    1. When a large atom is broken into smaller atoms (example: 235U + n0142Ba + 91Kr) that process is called:
      a. fission c. combustion
      b. fusion d. transfusion
    2. When smaller atoms are forced to form a larger atom (example: 3He + 4He   →   7Be) that process is called
      a. fission c. combustion
      b. fusion d. transfusion