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 ...

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.

The way we arrange them is in the order of increasing atomic number. Cal ... from the latin word ferrum for iron. On the periodic table, metals are found on the left and in the middle, and ...

These are almost one-quarter of the periodic table and are mainly found in the ... needed in very small quantities. For example, iron is necessary for producing haemoglobin, a protein found ...