The elements in the periodic table are organized by their atomic numbers, their electron configurations and the recurring properties found in them. Elements are arranged in blocks, with elements found in that block all c... More »

The Periodic Table offers basic information about each one of the known chemical elements. Each element has its own box in the table, and these boxes include the element's atomic number, atomic weight and chemical symbol... More »

Three elements on the periodic table are magnetic: iron, nickel and cobalt. There are also a number of metals that take on slight magnetic properties when subjected to a magnetic field. More » Science Chemistry Atoms & Molecules

Dmitri Mendeleev's periodic table featured elements arranged in accordance with their atomic mass, while the modern table has elements arranged according to periodic number. Mendeleev's periodic table also had the elemen... More »

Elements in the same group of the periodic table have similar properties because their electronic configurations have the same number of electrons in the outermost shell. Elemental behavior is almost completely reliant o... More »

The atomic radii of atoms increase as you travel down a family on the periodic table because of the increased number of electron shells. Each additional shell adds a layer that disrupts the attraction between the protons... More »

The periodic table got its name from the way the elements are arranged in rows, which are called periods. The columns of the table are called groups, some of which have specific names, such as the noble gases and the hal... More »