Atomic Number of Silicon
Atomic Number of Silicon is 14.
Chemical symbol for Silicon is Si. Number of protons in Silicon is 14. Atomic weight of Silicon is 28.085 u or g/mol. Melting point of Silicon is 1410 °C and its the boiling point is 2355 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Silicon
Silicon is a typical example of metalloid, or the substance which looks like metal but does not have its properties. Its name came from the Latin word for flint, and in its pure form it looks like dark-blue metal. There is abundance of this chemical element on our planet, i.e. we can see it in the form of sand on beaches, or in the forms of various silicates. Silicon is considered to be one of the most useful metals for humanity since its alloys and chemical compounds have a large variety of useful properties. They are used, for example, for producing engines, transformers, various tools, popes, elements of roofs and windows, etc. Pure silicon is used for producing glass. As a very good semi-conductor, silicon is used for producing microelectronics, especially computers, laptops, etc.
Properties of Silicon Element
Atomic Number (Z) | 14 |
---|---|
Atomic Symbol | Si |
Group | 14 |
Period | 3 |
Atomic Weight | 28.085 u |
Density | 2.3296 g/cm3 |
Melting Point (K) | 1687 K |
Melting Point (℃) | 1410 °C |
Boiling Point (K) | 3538 K |
Boiling Point (℃) | 2355 °C |
Heat Capacity | 0.705 J/g · K |
Abundance | 282000 mg/kg |
State at STP | Solid |
Occurrence | Primordial |
Description | Metalloid |
Electronegativity (Pauling) χ | 1.9 |
Ionization Energy (eV) | 8.15169 |
Atomic Radius | 110pm |
Covalent Radius | 111pm |
Van der Waals Radius | 210 |
Valence Electrons | 4 |
Year of Discovery | 1824 |
Discoverer | Berzelius |