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Platinum
Beginning of paper
, symbol Pt, is a relatively rare, chemically inert metallic
element that is more expensive than gold. The atomic number of is
78. is one of the transition elements in group 10 of the periodic
table. is the most important of the group of elements called the
metals, also included in this group is the metals: ruthenium,
rhodium, palladium, osm ....
Middle of paper
....rtant sources of
platinum are located in the Transvaal province in South Africa and in
Sudbury, Ont. Colombia and the United States also have sources of platinum.
The United States uses about 475,000 troy ounces of platinum a year. About
1/5 of this comes from its own mines and from scrap. The rest is imported
largely from Canada, which recovers .... |
| Word count: 640 |
Page count: 3 |
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