Quiestion 4 Based on your experimental data, which metal was likely used to make pennies after 1982?

copper

Explanation:

i think it's copper because it's cheep and It exists in abundance

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.