Aluminum belongs to the Boron family, which is group number 13 on the periodic table of elements. The other elements in the Boron family are the metals thallium, indium, gallium and the semi-metal boron. The element alum... More »

Aluminum is extracted from bauxite ore using chemical processes. Bauxite is strip mined from near the surface of the earth. The ore is then heated along with a sodium hydroxide solution that chemically separates the alum... More »

Aluminum can be found throughout the earth's crust, but it is most commonly extracted from bauxite ore. Because it is so soft in its pure form, most aluminum used for commercial purposes consists of alloys made from refi... More »

Aluminum exists as an element in its pure form, so it simply contains aluminum. Aluminum's symbol is Al, and its atomic number is 13. It is classified as a metal and appears in group 13 on the periodic table. More »

An element’s chemical activity is defined as its stability relative to the elements surrounding it on the periodic table. Chemical activity is also related to electronegativity. Elements that are highly electronegative a... More »

In a color-coded periodic table of the elements, the box for each element is colored. This color represents the classes of elements, which include metals, metalloids and non-metals. In general, the color blue is used for... More »

The alkaline earth metals are a group of elements on the periodic table that contain two electrons in their outermost energy levels and exhibit similar characteristics such as high reactivity. This group of elements cons... More »