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Silicon is the eighth most common element in the universe by mass, but very rarely occurs as the pure element in the Earth's crust. It is most widely distributed in dusts, sands, planetoids, and planets as various forms of silicon dioxide (silica) or silicates.
Silicon Facts. Silicon (Si) is the second most abundant element by weight on Earth, second only to oxygen. It has fourteen protons in the nucleus, giving it an atomic number of fourteen. Interesting Silicon Facts: Jacob Berzelius is typically credited with discovering silicon in 1824.ilicon (Si) is the second most abundant element by weight on Earth, second only to oxygen. It has fourteen protons in the nucleus, giving it an atomic number of fourteen.