Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard ...

Every element in the periodic table gives off a certain amount of visible light. ... (Au) and silver (Ag) apart. All 118 known elements give off a different combination of light waves, ...

The periodic table shows all the atoms that everything in the known universe is made from. It’s kind of like the alphabet in which only 26 letters, in different combinations, make up many thousands of ...

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. These new elements have high ...