Transition Metals And Beyond Worksheet Page 2
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7Part 3: Occurance of Metals
A. Most of the metals that we get from the earth come to us by way of compounds. Very few of the metals that we find
occur freely in nature. Of the metals that we are looking at on this worksheet only four of them are found freely and in
varying degrees. Make a guess as to the metals that occur freely in nature. Try to put the metal in the spot that best
describes the likelihood of find the metal free compared to finding that metal in a compound.
Description
Your Answer
Correct Answer
Usually found freely in nuggets or veins
Often found freely as beads within other rocks
Occassionaly found freely within a rock
Rarely found free at crust but thought to be free
in the core
B. Most of the metals from group 1 and 2 were found in chloride compounds such as Sodium Chloride (NaCl). Many
of the transition metals are found as Sulfides. Below are the names of the rocks in which we find many of these metals.
Give the name or the chemical formula for the sulfide compound in the rock.
Rock or Ore Name
Chemical Formula
Chemical Name
Pentlandite
Ni
S
Nickel Sulfide
9
8
Pyrite (Not a major source
FeS
2
of this metal)
Chalcocite
Cu
S
2
Galena
Lead Sulfide
Sphalerite
Zinc Sulfide
Argentite
Silver Sulfide
Cinnabar
HgS
C. Some other transition metals occur most often as oxides. Below are the names of the rocks in which we find many
of these metals. Give the name or the chemical formula for the oxide compounds in the rock.
Rock or Ore Name
Chemical Formula
Chemical Name
Rutile
TiO
2
Hermatite
Fe
O
2
3
Cuprite
Cu
O
2
Franklinite
Zinc Oxide
Bauxite
Aluminum Oxide
Cassiterite
Tin (IV) Oxide
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