I remember when they taught us about the Periodic Table in high school chemistry. My immediate reaction was WOW!!
Indeed. The periodic table is an ingenious method of laying out a whole set of chemical properties in one easy to consult format. Its invention is worthy of a Nobel prize, although I think it predates Nobel.
In some of my advanced chemistry classes, we were supposed to have the table memorized, at least for the top part where the common elements are.