Best Answer: Silicon is the fourteenth element of the periodic table and is a Group IVA element, along with carbon germanium, tin and lead.Pure silicon is a dark gray solid with the same crystalline structure as diamond. Its chemical and physical properties are similar to this material.Silicon has a melting point of 2570Â° F (1410Â° C), a boiling point of 4271Â° F (2355Â° C), and a density of 2.33 g/cm3.Source(s): http://en.wikipedia.org/wiki/Silicon.est Answer: Silicon is the fourteenth element of the periodic table and is a Group IVA element, along with carbon germanium, tin and lead.
Color blindness is an abnormal condition characterized by the inability to clearly distinguish different colors of the spectrum. The difficulties can be mild to severe. It is a misleading term because people with color blindness are not blind.
A reverse color blindness test is different from the traditional color blindness test, which uses an image that only people with normal color vision can see but that cannot be seen by those who are colorblind.