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30 Ιουν 2023 · Silicon is most commonly found in silicate compounds. Silica is the one stable oxide of silicon, and has the empirical formula SiO 2. Silica is not a silicon atom with two double bonds to two oxygen atoms. Silica is composed of one silicon atom with four single bonds to four oxygen molecules (Figure 2).
The element silicon is used extensively as a semiconductor in solid-state devices in the computer and microelectronics industries. For this, hyperpure silicon is needed. The silicon is selectively doped with tiny amounts of boron, gallium, phosphorus or arsenic to control its electrical properties.
Silicon is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive.
Silicon has fourteen protons and fourteen neutrons in its nucleus, and fourteen electrons in three shells. It is located in group fourteen, period three and block p of the periodic table. Metalloid element belonging to group 14 of the periodic table.
Formula: Si. Molecular weight: 28.0855. IUPAC Standard InChI: InChI=1S/Si. IUPAC Standard InChIKey: XUIMIQQOPSSXEZ-UHFFFAOYSA-N. CAS Registry Number: 7440-21-3. Chemical structure: This structure is also available as a 2d Mol file. Information on this page: Notes. Other data available: Gas phase thermochemistry data.
Ionization Energies of Silicon. The following table lists the ionization energies IE (ionization potentials); the IE is the energy required in electron volt (eV) per atom to separate a given electron from an Silicon atom. Isotopic Data of Silicon.
Formula: Si +. Molecular weight: 28.0850. IUPAC Standard InChI:InChI=1S/Si/q+1 Copy. IUPAC Standard InChIKey:FSLGCYNKXXIWGJ-UHFFFAOYSA-N Copy. CAS Registry Number: 14067-07-3. Chemical structure: This structure is also available as a 2d Mol file. Other names: Silicon cation. Permanent link for this species.
