periodic table

Fluorine is perhaps one of the most controversial elements on the periodic table.

Quarks and gluons are the fundamental building blocks of protons and neutrons -- elementary particles that combined to forge the basic elements of the periodic table.

As the lightest element in the periodic table, hydrogen rises and collects in a cloud under the tunnel ceiling.

Most rare earth elements are lanthanides, elements from 57 -- lanthanum -- to 71 -- lutetium -- on the periodic table.

As a first test of their new technique, the team used atoms of dysprosium -- a rare-earth metal that is one of the strongest magnetic elements in the periodic table, particularly at ultracold temperatures.