Add a spinner or die and a few game pieces, and a group of 2-4 students can play a card game to reinforce their knowledge of atomic structure and how to use the Periodic Table to determine the number of subatomic particles. Students arrange the 39 question cards in an oval manner and take turns spinning/rolling to move their game pieces. The student who lands on the question card should attempt to answer the question and score is kept by collecting the question cards that they each answer corr