Elements in group 1 and group 2 are metals ... See the study guide on groups in the periodic table for more information.

See if you can organize the first 25 elements of the periodic table in order in the quiz below. The periodic table as we know ...

But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

After a breakdown in US-Russia relations, Riken finds itself ahead of its rivals. And Lawrence Berkeley National Laboratory ...

The answer, at first, is boring: it’s a simple no. But the reasons why you cannot are complex and varied – some come from the ...

And the appearance of metals allowed solar systems to emerge from the discs of gas and dust that swirled around these new stars. A lesson guide to the periodic table “There’s now enough junk ...

Just four years before Mendeleev announced his periodic table, Newlands noticed that there were similarities between elements with atomic weights that differed by seven. He called this The Law of ...