Silicon - Wikipedia
网页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.
mp-149: Si (cubic, Fd-3m, 227) - Materials Project
网页Si is diamond structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Si is bonded to four equivalent Si atoms to form corner-sharing SiSi4 tetrahedra. All Si–Si bond lengths are 2.37 Å.
Silicon - Element information, properties and uses | Periodic Table
网页Element Silicon (Si), Group 14, Atomic Number 14, p-block, Mass 28.085. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Silicon | Element, Atom, Properties, Uses, & Facts | Britannica
网页2024年9月17日 · Silicon, a nonmetallic chemical element in the carbon family that makes up 27.7 percent of Earth’s crust; it is the second most abundant element in the crust, being surpassed only by oxygen. Learn more about the characteristics, distribution, and uses of silicon in this article.
网页2022年2月26日 · Silicon Crystal Structure •Silicon Crystal –binding energies •As temperature is increased –some electrons acquire enough energy to “jump” the bandgap and move from a valence band state to a conduction band state •These electrons can move freely through the crystal while in the conduction band
Chemistry of Silicon (Z=14) - Chemistry LibreTexts
网页2023年6月30日 · It is a group 14 element in the same periodic group as carbon, but chemically behaves distinctly from all of its group counterparts. Silicon shares the bonding versatility of carbon, with its four valence electrons, …
Silicon (Si) - Periodic Table
网页Silicon is the 14th element in the periodic table and has a symbol of Si and atomic number of 14. It has an atomic weight of 28.085 and a mass number of 28. 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.
nglos324 - silicon - Princeton University
网页Silicon is a semiconductor in group IVA of the periodic table with atomic number 14, an atomic weight of 28.086, and a density of 2.33 Mg/m 3. It melts at 1410 C. The electronic configuration of the silicon atom is: (Ne)(3s) 2 (3p) 2, and the atomic radius is 0.132 nm.
Silicon, Physical and Chemical Properties | SpringerLink
网页Silicon is a metalloid having the diamond structure (Fig. 1). It has the appearance of a metal (Fig. 2) but lacks all properties of metals. Modern electronics is almost exclusively (>95%) based on silicon devices and these are made from single-crystal silicon.
Crystal Structure of Silicon - Purdue University
网页Crystal Structure of Silicon. = Si. The crystal structure of silicon.
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