a metalloid Boron appears in the mineral borax, boron has two allotrope by the amorphous boron is a brown powder and metallic boron is black, formed as the metal is very hard (9.3 on a section of Mohs), but electricity is not good at room temperature. Not independent in nature As oxides and halides. A covalent bond, such as BF3.
For example, an important compound
The boron trioxide (B2O2) to be used as ingredients. Borocilicated is glass that is used in making glass in laboratory beakers and test tubes, bottles, apple-shaped bottle, flat bottom, round bottom flask and so on.
Sodium tetrachloride Boca Raton's not hydrate (Na2B2O2-10H2O) (borax) is used to make jewelry. Popularly known among Goldsmith said. "Borax"
A transition metal that is soft, shiny and easy bending. In nature, aluminum is found in bauxite-based. The outstanding feature is the excellent resistance to oxidation. (The phenomenon of passivation) stronger and lighter. Aluminum is used in many industries. To create many different products and aluminum extremely important to the global economy. Structural parts made of aluminum critical to the aerospace industry. And in other areas of transport and buildings. Which require light weight, durability and strength.
Ga gallium metal in the periodic table, among 3A is bad. Solid brittle at low temperatures with a soft silver. Pumped on the palm. The melting point is slightly higher than room temperature. Natural mineral found in Bordeaux site (bauxite) and gallium zinc compounds, R. Silva cyanides. Using semiconductor light emitting diode.
Indium is a metal that is not easily melt, chemically similar to aluminum and gallium but looks more like zinc. Currently used as a transparent electrode made of indium tin oxide materials in LCD (Liquid Crystral Displays-LCD) and use a lubricant.
Thallium is a soft gray metal soft. Can be stretched like a tin But when exposed to air, it changes color. Thallium is highly toxic Using a rat poison and insecticides. Can cause cancer, it has been banned in many countries. Also check with infrared radiation.