Atoms of non-metal elements gain electrons in some of ... See the study guide on groups in the periodic table for more information.

The position of an element on the periodic table provides information about its properties. The majority of elements are metals and they are found on the left and in the middle of the periodic table.

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 ...

Heavy ligands such as polyoxometalates are opening a new frontier in actinide chemistry. Studying materials that are both radioactive and rare presents significant challenges. The elements that follow ...

This year we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that we use today. He announced his structure in 1869, but the challenge of ...

4th Period: Potassium and Calcium—Electrons go into the fourth energy level. A small piece of sodium metal is placed in water. The sodium reacts with the water and gets very hot, producing sodium ...

such as metals or gases, while also giving each individual element its own chemical symbol. In this periodic table of ...

Ram Mohan looks at how bismuth — a remarkably harmless element among the toxic heavy metals in the periodic table — has sparked interest in areas varying from medicinal to industrial chemistry.

Iron is a metal in group VIII of the periodic table with atomic number 26, an atomic weight of 55.85, and a density of 7.86. It has a melting point of 1539 C.