pennys are 97.5% zinc and 2.5% copper
Today's pennies (since 1983) are made almost entirely of zinc, with a thin outer coating of copper.
Hydrogen is the element that makes up over 90% of the atoms in our galaxy. It is the most abundant element in the universe and plays a crucial role in the formation of stars and galaxies. In addition to hydrogen, helium is the second most abundant element, but its presence is significantly less than that of hydrogen. Together, these elements are fundamental to the structure and evolution of the cosmos.
penny
A penny if that is what you are asking for.
copper
A penny is a compound, not an element. Pennies are typically made of a combination of mostly zinc and copper, which are two different elements.
Copper
90$
i know a penny can rust, but im not sure what makes a peny rust! i, too, hope to find out!
100 penny makes a dollar. Every penny counts, my friend!
In the universe, hydrogen. It makes up more than 90% of all matter. On Earth, oxygen, at about 50%.
A Penny is not a compound. It's just one word.