The periodic table of the elements. Wikimedia Commons/Chemical Heritage Foundation/Conrad Erb. Tennessee is the second U.S. state to be recognized with an element; California was the first.

Feb. 13, 2024 — Since the turn of the century, six new chemical elements have been discovered and subsequently added to the periodic table of elements, the very icon of chemistry.

You may not know the slightly more obscure elements featured in Tom Lehrer’s catchy jingle that has helped generations of students memorize the periodic table of elements. But they’re likely in your ...