What is a nickel?

The nickel is a US coin worth five cents or 1/20 dollar = 5 pennies. Twenty nickels make a dollar. One nickel can be written 5ยข or $0.05. It is made of cupronickel or copper-nickel (CuNi), which is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. It is larger than a penny. It has Thomas Jefferson on the front and Monticello (Jefferson's colonial plantation) on the back.
