Our element is silicon. The symbol is SI, the atomic number is 14, and the atomic mass is 28.09. The cost of this element pure is $5.4 per 100 grams and the cost of silicon in bulk is $0.14 per 100 grams. The common uses are for computer chips, lubricants, used to make concrete and bricks, and used in medicine for silicone implants. Some interesting facts about silicon are is its the seventh-most abundant element in the universe and the second-most abundant element on the planet. The person who discovered this element was named Jons Jacob Berzelius. "silicon we bring the breast out in everybody."