What does Si stand for in the periodic table?

Answer 1

SiliconInteresting Facts about Silicon

• The lowest acceptable purity for electronic grade silicon is 99.9999999%. This means that for every billion atoms, only one non-silicon atom is allowed.
• Silicon is the second most abundant element in our planet's crust. Oxygen (47.3%) and silicon (27.7%) together make up 75% of the weight of Earth's crust. Most of the crust's silicon exists as silicon dioxide; we are familiar with this as sand or quartz.
• Silicon is the eighth most abundant element in the Universe; it is made in stars with a mass of eight or more Earth suns. Near the end of their lives these stars enter the carbon burning phase, adding helium nuclei to carbon to produce oxygen, neon, magnesium and silicon.
• Silicon burning is the last phase of a heavy star's life before a supernova and lasts only about one day. During this phase, helium nuclei add to silicon to make sulfur, argon, calcium, titanium, chromium, iron and nickel.

Answer 2

Si stands for Silicon in the Periodic Table. It is a metalloid element with atomic number 14.