Since the invention of the periodic table 150 years ago this month, scientists have worked to fill in the rows of elements and make sense of their properties.

Ever wondered what makes Hydrogen number 1 on the periodic table? There's a reason. Discover the intelligent design of the periodic table with BBC Bitesize.

A periodic table of chemical elements showing where every atom in the solar system comes from. ... (Mg), silicon (Si), and iron (Fe) — it took billions upon billions of years.

When it comes to the discovery of elements on the periodic table, you can divide the world into two parts—Ytterby, and everywhere else. Ytterby ("itt-ter-bee") is a village on a speck of an ...

In certain environments (such as a supernova), an iron nucleus can capture neutrons. Eventually, one of those neutrons will convert into a proton, an electron, and an antineutrino. This process ...

The chemical symbol for oxygen is O. Makes sense. Calcium gets repped by a Ca. Sounds good. Hydrogen? H. Cobalt? Co. Lithium? Li. With you so far. Lead? Pb. There are actually a few things that ...