Definition : A trace element that constitutes about 27.6% of the earth's crust in the form of silicon
dioxide. It does not occur free in nature. Silicon has the atomic symbol Si, atomic
number 14, and atomic weight 28.09. [MeSH];
A trace element that constitutes about 27.6% of the earth's crust in the form of silicon
dioxide. It does not occur free in nature. Silicon has the atomic symbol Si, atomic
number 14, and atomic weight 28.09. [MeSH]