Site hosted by Angelfire.com: Build your free website today!

Periodicity

First group or row going down is the Alkali Metals, the second group is the Alkaline-earth metals, from group 3-12 or the middle groups is Transition metals.

Aluminum, Gallium, Indium, Tin, Thallium, lead, Bismuth, and Polonium are other different kinds of metals.

Boron, Silicon, Germanium, Arsenic, Antimony, and Tellurium are the Metalloids

Carbon, Nitrogen, Oxygen, Phosphorus, Sulfur, and Selenium are Nonmetals and Fluorine, Chlorine, Bromine, iodine, and Astatine are also nonmetals or Halogens

And the last group or group 18 are the Noble Gases

Hydrogen is not considered in any certain group.

Elements up to the 92nd one occur naturally. They were created in the interior of stars in deep space. Other elements are made in laboratories with technology and human ingenuity.

back home