Below you can find the While the core of a quarter is made of copper the core of a penny is made of this element atomic number 30 Jeopardy Words Answer. The answer to While the core of a quarter is made of copper the core of a penny is made of this element atomic number 30 has 4 letters. This clue belongs to the Money category and is part of Jeopardy Word Level 651. If you scroll near the bottom you will find other clues and answers part of level 651