Each of the 18 columns in the table is called a group or a family. Elements in the same group share similar properties. And the properties can be assumed based on the location within the group.

By Michael Banks I can’t imagine a science laboratory that doesn’t have a periodic table hung somewhere on the wall. I even have a periodic table application on my iPhone that gives you all you need ...

Interestingly, Janet also provided space for elements right up to number 120 despite only 92 being known at the time (we’re only at 118 now). Charles Janet’s left-step table. Wikipedia, CC BY-SA ...

The periodic table is a fundamental part of understanding chemistry. Elements define our universe: they are the components and foundation of the substances that we interact with every day.

The periodic table of the elements. Wikimedia Commons/Chemical Heritage Foundation/Conrad Erb. Tennessee is the second U.S. state to be recognized with an element; California was the first.

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 ...

In the past 250 years, new elements have been added to the table about once every 2 ½ years on average, said Paul Karol of Carnegie Mellon University. He chaired the committee that recognized the ...

Periodic table by Mendeleev, 1871. He, his papers and his table garnered a lot of attention and accelerated progress in our collective understanding of the elements and their relationships to each ...

Do you have a favorite chemical element? Neurologist Oliver Sacks did—he was partial to dense, high melting-point metals, especially those metals between hafnium and platinum on the periodic table.

The elements that fall on each of the wheel’s spokes share common properties just as those in a column (group) do so in today’s table. There was also Henry Basset’s rather odd “dumb-bell ...