Mrs Roberts: Well, elements that have similar properties to each other are put into vertical columns called groups. Now, the table is called the periodic table because the elements with similar ...

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 ...

The table is divided into rows called periods and columns called groups or families. Mendeleev’s work Here is a list of periodic table elements with their names, symbols, atomic numbers ...