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 (sometimes spelled colour-blindness; also called race blindness) is a sociological term for the disregard of racial characteristics when selecting which individuals will participate in some activity or receive some service.
Color blindness, or color vision deficiency, is the inability or decreased ability to see color, or perceive color differences, under normal lighting conditions. Color blindness affects a significant percentage of the population.wo of the most common inherited forms of color blindness are protanopia and deuteranopia. One of the common color vision defects is red-green deficiency which is present in about 8 percent of males and 0.5 percent of females of Northern European ancestry.