It seems as if the makeup of the periodic table would be as rudimentary as apples falling down, not up. There’s evidence for elements like oxygen, iron, and silicon all around.

Periodic Table Day is celebrated every year on … well, we'll let you figure that out in the quiz just below! Plenty of folks have a fascination with the periodic table all year long.

Scientists have long been puzzled by its density, as the 34-mile-wide ... Nearby asteroid may contain elements 'beyond the periodic table', new study suggests : Read more ...

Instead, they may be made of naturally occurring "superheavy elements" beyond those listed in the periodic table — our current best catalog of 118 chemical elements — new research suggests.