a. copper
b. gold
c. platinum
d. silver
2007-05-25 13:56:35 · 5 answers · asked by AEL 1 in Science & Mathematics ➔ Chemistry
platinum is not used in coins.
2007-05-25 13:59:21 · answer #1 · answered by science teacher 7 · 1⤊ 1⤋
They've all been used for coinage. Platinum not so much. Your pennies are copper-plated zinc. Your nickels are cupronickel alloy..
2007-05-25 21:00:22 · answer #2 · answered by Uncle Al 5 · 1⤊ 2⤋
Actually, they all are -- if you count special issues. However, platinum is very seldom used, so I will answer this 'C'.
2007-05-25 21:00:59 · answer #3 · answered by Don E Knows 6 · 1⤊ 2⤋
they are all used. platinum is used least
2007-05-25 23:13:19 · answer #4 · answered by Dr. Eddie 6 · 0⤊ 1⤋
http://www.usmint.gov/mint_programs/american_eagles/index.cfm?flash=yes&Action=american_eagle_platinum
http://www.usmint.gov/about_the_mint/index.cfm?action=CoinageAct
-This last one is probably what you want.
2007-05-25 21:05:43 · answer #5 · answered by BotanyDave 5 · 0⤊ 1⤋