Tellurium

=__//TELLURIUM//__ =

=__//YOU ARE NOW ENTERING THE FIRST ZONE ON TELLURIUM://__=

Its symbol is Te. The atomic mass is 127.6 and its atomic number is 52. It is in period number five and in group/family number sixteen. At room temperature it is a solid.
=__//THE PICTURE ZONE://__= ===This first picture is of an ultra pure and refined tellurium crystal. The second picture is of what happens when pure tellurium is melted homogeneously and allowed to solidify it produces beautiful crystals. ===



=__//PREPARE YOURSELF FOR THE HISTORY ZONE://__= ===Tellurum is EXTREMELY RARE,one of the 9 rarest metallic elements on Earth. Tellurium was discovered in 1782 by Franz-Joeph Muller Von Reichestein in Nagyszben (which is now Sibiu) Transylvania. It was named by Martian Heinrich Klaproth. Tellurium was first used as a chemical bonder for the first atomic bomb, now it is used in free making steel. When crystalline, tellurium is silvery-white and when it isin its pure state it has a metallic luster. This is a brittle and easily pulverized metalloid. Amorphous tellurium is found by precipitating it from a solution of tellurous or telluric acid.===

If you would like even more information on tellurium here's a link: http://periodic.lanl.gov/elements/52.html
=//__THE VIDEO ZONE__//=

=//__Element uses:__//= ===Tellurium has no know biological role. Workmen exposed to very small quantities of tellurium in the air develop “tellurium breath”, which has a garlic-like odor. Tellurium is also mildly toxic. there isn't a large abundance of tellurium in the world, it is found in nature and is not man made, so it doesn't have any hazards effects on the environment.===

=//__Physical Properties and Appearance:__//= ===Tellurium's appearance is a shiny silvery-gray metalloid and is very smooth but brittle. Its melting point is 841.12 degrees Fahrenheit and its boiling point is 1810 degrees Fahrenheit. Tellurium is a solid at room temperature. It also has 23 isotopes along with an atomic mass of 127.6 and an atomic number of 52.===

=//__Other information:__//= ===Tellurium is often used as an additive to steel and it is often alloyed to aluminum, copper, lead or tin. Tellurium is added to lead to improve its durability, strength and resistance to corrosion. When added to rubber, tellurium speeds up the curing process and makes the product less susceptible to ageing and less likely to be affected by oil, which softens normal rubber. Tellurium contains 23 isotopes. If you wanted you could buy one pound of tellurium for $100.===

=//__This diagram below is a Bohr model of tellurium:__//=