Asked in Elements and Compounds, Metal and Alloys
What was the year pennies were made of pure copper?
Pennies were made out of pure copper from 1793-1857. Today, pennies are mostly made of zinc but coated with copper. ...
Asked in Periodic Table
What element of the periodic table are pennies made out of?
Older pennies were made from about 97% copper and 3% zinc. Today, pennies are made from about 97% zinc and 3% copper. ...
Asked in Coins and Paper Money, US Coins
Are the 1970s pennies different from the 1990s pennies?
Yes, in the 1970s pennies were made of 95% copper while in the 1990s they were made of about 97% zinc. ...