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

However, he is remembered for his search for a pattern in inorganic chemistry. Just four years before Mendeleev announced his periodic table, Newlands noticed that there were similarities between ...

Note that older texts list both francium and cesium as least electronegative at 0.7 ... Electronegativity and ionization energy follow the same periodic table trend. Elements that have low ionization ...

Nihonium (Nh), a radioactive synthetic element, joined the periodic table of elements in November five years ago with the atomic number 113. More than a century ago, a similar sounding but ...