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

The periodic table, also known as the periodic table of (the) chemical elements, is a tabular display of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is ...

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 ...

Meyer was just four years older than Mendeleev, and produced several Periodic Tables between 1864-1870. His first table contained just 28 elements, organised by their valency (how many other atoms ...

The periodic table captures a subtle pattern that runs ... Lithium, for example, with an atomic number of 3, is a reactive metal — just like sodium (element number 11) and potassium (number ...

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.