Periodic Table

1. Name the element that is
   1. the alkaline earth metal in row 5   (Strontium)
   2. the halogen in row 3   (Chlorine)
   3. in column 5 A row 6   (Bismuth)
   4. the transition metal in row 4 with the most mass  (Zinc)
   5. the last naturally existing element in the Actinide series (Uranium)
   6. a metalloid in the Carbon family (Silicon or Germanium)
   7. a liquid at room temperature (Mercury or Bromine)
       

2. Name the Russian scientist who was the first to arrange the elements into a table to show their periodic nature?  (Mendeleev)
    

3. Chlorine would be the most chemically similar to which of these elements?
   1. Sodium          b.  Sulfur        c.  Fluorine   d.  Argon

Explain your answer.  (Elements in the same column or family are most similar because they have the same outmost electron structure) 

4. List one reason that hydrogen is placed on top of Column IA and one way it is very dissimilar to the other elements in that column. (It is similar in that it has one outermost electron.  It is dissimilar because it is a nonmetal and an active gas.  It is in that way more like the halogens than that Alkali metals which are soft, shiny, very active metals.)
    

5. List several physical properties of each of the following and explain where you would find them on the periodic table.
   1. Metals- Shiny, conductors, malleable, ductile, relative high melting points, usually more dense than nonmetals.
   2. Non-metals- Less dense and lower melting points than metals
   3. Metalloids- Have some metallic and some non-metallic properties.
       

6. a.  The atomic number of an element represents the number of which nuclear particle? (protons)

b.       The atomic mass of an element is the number of which two nuclear particles? (protons and neutrons)

c.       If two atoms are isotopes of each other, which nuclear particle is different about them? (neutrons)

7.  Given the following, list the numbers of protons, neutrons and electrons in each.
   1. ₁₅³¹P    (note that the 31 should be right on top of the 15 but I couldn’t get my computer to do it that way)

p=15, n=16, e=15

2. ₅₀¹¹⁹Sn (same note: the 119 should be right on top of the 50)

p=50, n=69, e=50

8. Given the following number of protons, neutrons and electrons, list the correct symbol (like the one given in problem 7)
   1. p=12, n=12 , e=12       ₁₂²⁴Mg
   2. p=9, n=10, e=9             ₉¹⁹F
       

9. Given this chart showing the number of protons, neutrons and electrons and “mystery symbols”
    

a.      Which two are isotopes of each other? Y and Q  (protons the same but neutrons different)

b.      Which one is an ion? Z  (protons and electrons are different.  It has given away 2 electrons and would have a +2 charge) 

10.  Name the following binary compounds:
    1. CaF₂         Calcium fluoride
    2. Na₂O      Sodium oxide
    3. Al₂S₃        Aluminum sulfide
        

11. What is the formula for these binary compounds?
    1. Beryllium iodide       BeI₂
    2. Magnesium nitride   Mg₃N₂
    3. Strontium fluoride    SrF₂
        

12. What are the names of these compounds with polyatomic ions? (Note you will have to use a polyatomic ion chart)
    1. Lithium sulfate    Li₂SO₄
    2. Calcium nitrate    Ca(NO₃)₂
    3. Ammonium chloride  NH₄Cl  Note: don’t mix up the ammonium polyatomic ion which is NH4⁺¹ with the Aluminum ion which is Al⁺³
        

13. What is the name of these compounds with polyatomic ions?
    1. ZnSO₃                Zinc sulfite
    2. Ca₃(PO₄)₂        Calcium phosphate
    3. Ba(NO₂)₂          Barium nitrite
        

14. What are the formulas for these compounds with variable valence ions?
    1. Iron (III) bromide     FeBr₃
    2. Copper (I) Oxide      Cu₂O
    3. Mercury (II) phosphide    Hg₃P₂
        

15. What is the name for these compounds with variable valence ions?
    1. FeBr₂         Iron (II) Bromide
    2. CuS           Copper (II) Sulfide
    3. Fe(NO₃)₃   Iron (III) Nitrate

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