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 ...

Substances have both physical and chemical properties. Developing the periodic table The periodic table was developed by grouping elements with similar properties. This, together with a later ...

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 ...