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 ...

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 ...

Even though chemists had identified relationships between small groups of elements ... Meyer and William Odling independently published their own versions of a periodic table. Meyer’s table was ...

For the last fifty or so years, the periodic table has been incomplete. Elements after uranium on the periodic table have been synthesized for the past few decades, but there were always a few ...

it’s more like a museum than a table. So, we’ve taken to calling it the Periodic Museum of the Elements. The Museum may be seen at the top of the grand staircase in the Julian Science Center. School ...