Template:Infobox silicon

	child table, as reused in {IB-Si} v; e; h;
Main isotopes of silicon

Silicon, ₁₄Si
	A lump of black reflective metal
Silicon
Pronunciation	/ˈsɪləkən/ Audio file "LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-silicon.wav" not found; (SIL-ə-kən); /ˈsɪləkɒn/ Audio file "LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-silicon (alt).wav" not found; (SIL-ə-kon);
Allotropes	see Allotropes of silicon
Appearance	crystalline, reflective with bluish-tinged faces
Standard atomic weight Ar°(Si)
	[28.084, 28.086]; 28.085±0.001 (abridged);
Silicon in the periodic table
Atomic number (Z)	14
Group	group 14 (carbon group)
Period	period 3
Block	p-block
Electron configuration	[Ne] 3s2 3p2
Electrons per shell	2, 8, 4
Physical properties
Phase at STP	solid
Melting point	1687 K (1414 °C, 2577 °F)
Boiling point	3538 K (3265 °C, 5909 °F)
Density (at 20° C)	2.329085 g/cm3
when liquid (at m.p.)	2.57 g/cm3
Heat of fusion	50.21 kJ/mol
Heat of vaporization	383 kJ/mol
Molar heat capacity	19.789 J/(mol·K)
Specific heat capacity	704.611 J/(kg·K)
Atomic properties
Oxidation states	common: −4, +4; −3, −2, −1, 0, +1, +2, +3
Electronegativity	Pauling scale: 1.90
Ionization energies	1st: 786.5 kJ/mol ; 2nd: 1577.1 kJ/mol ; 3rd: 3231.6 kJ/mol ; (more) ;
Atomic radius	empirical: 111 pm
Covalent radius	111 pm
Van der Waals radius	210 pm
	Color lines in a spectral rangeSpectral lines of silicon
Other properties
Natural occurrence	primordial
Crystal structure	face-centered diamond-cubic (cF8)
Lattice constant	Diamond cubic crystal structure for silicona = 543.0986 pm (at 20 °C)
Thermal expansion	2.556×10−6/K (at 20 °C)
Thermal conductivity	149 W/(m⋅K)
Electrical resistivity	2.3×103 Ω⋅m (at 20 °C)
Band gap	1.12 eV (at 300 K)
Magnetic ordering	diamagnetic
Molar magnetic susceptibility	−3.9×10−6 cm3/mol (298 K)
Young's modulus	130–188 GPa
Shear modulus	51–80 GPa
Bulk modulus	97.6 GPa
Speed of sound thin rod	8433 m/s (at 20 °C)
Poisson ratio	0.064–0.28
Mohs hardness	6.5
CAS Number	7440-21-3
History
Naming	after Latin silex or silicis, meaning 'flint'
Prediction	Antoine Lavoisier (1787)
Discovery and first isolation	Jöns Jacob Berzelius (1823)
Named by	Thomas Thomson (1817)
Isotopes of silicon v; e;
	File:Symbol category class.svg Category: Silicon; view; talk; edit; \| references

Si · Silicon
Al ← ibox Al	^iso ₁₄Si [e] IB-Si [e] IBisos [e]	→ P ibox P
File:Symbol category class.svg cat:Si (0) File:Symbol category class.svg cat:Si-isotopes (0) File:Commons-logo.svg Commons File:Wikidata-logo.svg Wikidata:Q670 File:Wiktionary-logo.svg Wiktionary
indexes by PT (page) v e

Data sets read by {{Infobox element}}
Name and identifiers	view edit
Symbol etymology (11 non-trivial)	view edit
Top image (caption, alt)	caption: view edit alt: view edit
Pronunciation	view edit
Allotropes (overview)	view edit
Group (overview)	view edit
Period (overview)	view edit
Block (overview)	view edit
Natural occurrence	view edit
Phase at STP	view edit
Oxidation states	view edit
Spectral lines image	view edit
Electron configuration (cmt, ref)	view edit
Isotopes
Standard atomic weight	view edit
most stable isotope	view edit
File:Notification-icon-Wikidata-logo.svg Wikidata
Wikidata *	view edit
* Not used in {{Infobox element}} (2023-01-01) See also {{Index of data sets}} · Cat:data sets (0) · (this table: v )

References

↑ "Standard Atomic Weights: Silicon". CIAAW. 2009.
↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.
↑ ^3.0 ^3.1 ^3.2 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.
↑ "New Type of Zero-Valent Tin Compound". Chemistry Europe. 27 August 2016.
↑ Ram, R. S.; et al. (1998). "Fourier Transform Emission Spectroscopy of the A2D–X2P Transition of SiH and SiD" (PDF). J. Mol. Spectr. 190 (2): 341–352. doi:10.1006/jmsp.1998.7582. PMID 9668026.
↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. doi:10.1016/C2009-0-30414-6. ISBN 978-0-08-037941-8.
↑ Eranna, Golla (2014). Crystal Growth and Evaluation of Silicon for VLSI and ULSI. CRC Press. p. 7. ISBN 978-1-4822-3281-3.
↑ Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton, Florida: CRC Press. ISBN 0-8493-0486-5.
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
↑ ^10.0 ^10.1 ^10.2 ^10.3 Hopcroft, Matthew A.; Nix, William D.; Kenny, Thomas W. (2010). "What is the Young's Modulus of Silicon?". Journal of Microelectromechanical Systems. 19 (2): 229. doi:10.1109/JMEMS.2009.2039697.
↑ Weeks, Mary Elvira (1932). "The discovery of the elements: XII. Other elements isolated with the aid of potassium and sodium: beryllium, boron, silicon, and aluminum". Journal of Chemical Education. 9 (8): 1386–1412. Bibcode:1932JChEd...9.1386W. doi:10.1021/ed009p1386.
↑ Voronkov, M. G. (December 2007). "Silicon era". Russian Journal of Applied Chemistry. 80 (12): 2190–2196. doi:10.1134/S1070427207120397.
↑ ^13.0 ^13.1 Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3) 030001. doi:10.1088/1674-1137/abddae.

Four of these are named references. They may be cited in the containing article as

<ref name="Eranna2014" /> for the source by Eranna
<ref name="hopcroft" /> for the source by Hopcroft
<ref name="Voronkov-2007" /> for the source by Voronkov
<ref name="Weeks-1932" /> for the source by Weeks

[CIAAWsilicon-1] "Standard Atomic Weights: Silicon". CIAAW. 2009.

[CIAAW2021-2] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[Arblaster_2018-3] 3.0 ^3.1 ^3.2 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.

[ZeroValentTin-4] "New Type of Zero-Valent Tin Compound". Chemistry Europe. 27 August 2016.

[5] Ram, R. S.; et al. (1998). "Fourier Transform Emission Spectroscopy of the A2D–X2P Transition of SiH and SiD" (PDF). J. Mol. Spectr. 190 (2): 341–352. doi:10.1006/jmsp.1998.7582. PMID 9668026.

[GE28-6] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. doi:10.1016/C2009-0-30414-6. ISBN 978-0-08-037941-8.

[Eranna2014-7] Eranna, Golla (2014). Crystal Growth and Evaluation of Silicon for VLSI and ULSI. CRC Press. p. 7. ISBN 978-1-4822-3281-3.

[8] Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton, Florida: CRC Press. ISBN 0-8493-0486-5.

[9] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

[hopcroft-10] 10.0 ^10.1 ^10.2 ^10.3 Hopcroft, Matthew A.; Nix, William D.; Kenny, Thomas W. (2010). "What is the Young's Modulus of Silicon?". Journal of Microelectromechanical Systems. 19 (2): 229. doi:10.1109/JMEMS.2009.2039697.

[Weeks-1932-11] Weeks, Mary Elvira (1932). "The discovery of the elements: XII. Other elements isolated with the aid of potassium and sodium: beryllium, boron, silicon, and aluminum". Journal of Chemical Education. 9 (8): 1386–1412. Bibcode:1932JChEd...9.1386W. doi:10.1021/ed009p1386.

[Voronkov-2007-12] Voronkov, M. G. (December 2007). "Silicon era". Russian Journal of Applied Chemistry. 80 (12): 2190–2196. doi:10.1134/S1070427207120397.

[NUBASE2020-13] 13.0 ^13.1 Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3) 030001. doi:10.1088/1674-1137/abddae.

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