In the periodic table of elements there is one golden rule for carbon, oxygen and other light elements: Under high pressures, they have similar structures to heavier elements in the same group of ...

Which is your favourite chemical element? In a new series to mark the International Year of the Periodic Table, our science journalists will be arguing for their pick from the 118 known elements. In ...

Life itself depends on a core group of about a dozen elements – such as carbon, hydrogen, oxygen and nitrogen – along with ...

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of star stuff.--Carl Sagan Almost all ...

The periodic table of the elements, principally created by the Russian chemist, Dmitry Mendeleev (1834-1907), celebrated its 150th anniversary last year. It would be hard to overstate its importance ...

Why it matters: The periodic table organizes elements by atomic number and properties, making it a powerful tool for predicting reactivity and bonding tendencies. Learning made easier: Interactive ...

This year marks the 150th anniversary of the publication of Mendeleev’s Periodic Table of Chemical Elements in 1869. In celebration, the United Nations Educational, Scientific, and Cultural ...

As of 2019, the Periodic Table of the Elements has been around for 150 years. Maybe you've felt a certain chemistry with 2019 but don't know why? Maybe it's because this year marks the 150th ...