Template:Infobox antimony

Antimony, ₀₀Sb
Antimony
Pronunciation	UK: /ˈæntɪməni/; (AN-tə-mə-nee); US: /ˈæntɪmoʊni/; (AN-tə-moh-nee);
Appearance	silvery lustrous gray
Standard atomic weight Ar°(Sb)
	121.760(1)
Antimony in the periodic table
	tin ← antimony → tellurium
Group	group 15 (pnictogens)
Period	period 5
Block	p-block
Electron configuration	[Kr] 4d10 5s2 5p3
Electrons per shell	2, 8, 18, 18, 5
Physical properties
Phase at STP	solid
Melting point	903.78 K (630.63 °C, 1167.13 °F)
Boiling point	1908 K (1635 °C, 2975 °F)
Density (near r.t.)	6.697 g/cm3
when liquid (at m.p.)	6.53 g/cm3
Heat of fusion	19.79 kJ/mol
Heat of vaporization	193.43 kJ/mol
Molar heat capacity	25.23 J/(mol·K)
Atomic properties
Oxidation states	−3, −2, −1, 0, 1, 2, 3, 4, 5 (an amphoteric oxide)
Electronegativity	Pauling scale: 2.05
Ionization energies	1st: 834 kJ/mol ; 2nd: 1863.9 kJ/mol ; 3rd: 2440 kJ/mol ; (more) ;
Atomic radius	empirical: 140 pm
Covalent radius	139±5 pm
Van der Waals radius	206 pm
	Spectral lines of antimony
Other properties
Natural occurrence	primordial
Crystal structure	rhombohedral
Speed of sound thin rod	3420 m/s (at 20 °C)
Thermal expansion	11 µm/(m⋅K) (at 25 °C)
Thermal conductivity	24.4 W/(m⋅K)
Electrical resistivity	417 nΩ⋅m (at 20 °C)
Magnetic ordering	diamagnetic
Molar magnetic susceptibility	−99.0·10−6 cm3/mol
Young's modulus	55 GPa
Shear modulus	20 GPa
Bulk modulus	42 GPa
Mohs hardness	3.0
Brinell hardness	294–384 MPa
CAS Number	7440-36-0
History
Discovery	Arabic alchemists (before AD 815)
Symbol	"Sb": from Latin stibium 'stibnite'
Isotopes of antimony v; e;
	Category: Antimony; view; talk; edit; \| references

↑ "Standard Atomic Weights: Antimony". CIAAW. 1993.
↑ Anastas Sidiropoulos (2019). "Studies of N-heterocyclic Carbene (NHC) Complexes of the Main Group Elements" (PDF). p. 39. doi:10.4225/03/5B0F4BDF98F60. S2CID 132399530.
↑ Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th ed.). Boca Raton (FL): 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.
↑ 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.

[1] "Standard Atomic Weights: Antimony". CIAAW. 1993.

[2] Anastas Sidiropoulos (2019). "Studies of N-heterocyclic Carbene (NHC) Complexes of the Main Group Elements" (PDF). p. 39. doi:10.4225/03/5B0F4BDF98F60. S2CID 132399530.

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

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

[NUBASE2020-5] 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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