Antimonyo

Antimony
51Sb
As ↑ Sb ↓ Bi Periodic table tin ← antimony → tellurium
Appearance
silvery lustrous gray
General properties
Name, simbolo, kaiphan	antimony, Sb, 51
Pronunciation	Plantilya:IPAc-en Plantilya:Respell; Plantilya:IPAc-en Plantilya:Respell
Element category	metalloid
Group, period, block	15, 5, p
Standard atomic weight	121.760(1)
Electron configuration	[Kr] 4d10 5s2 5p3 2, 8, 18, 18, 5
History
Discovery	3000 BC
First isolation	Vannoccio Biringuccio (1540)
Physical properties
Phase	magahi
Density (near r.t.)	6.697 g·cm−3
Liquid density at m.p.	6.53 g·cm−3
Melting point	903.78 K, 630.63 °C, 1167.13 °F
Boiling point	1860 K, 1587 °C, 2889 °F
Heat of fusion	19.79 kJ·mol−1
Heat of vaporization	193.43 kJ·mol−1
Molar heat capacity	25.23 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 807 876 1011 1219 1491 1858
Atomic properties
Oxidation states	5, 3, -3
Electronegativity	2.05 (Pauling scale)
Ionization energies (more)	1st: 834 kJ·mol−1
	2nd: 1594.9 kJ·mol−1
	3rd: 2440 kJ·mol−1
Atomic radius	140 pm
Covalent radius	139±5 pm
Van der Waals radius	206 pm
Miscellanea
Crystal structure	simple trigonal
Magnetic ordering	diamagnetic
Electrical resistivity	(20 °C) 417 nΩ·m
Thermal conductivity	24.4 W·m−1·K−1
Thermal expansion	(25 °C) 11 µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 3420 m·s−1
Young's modulus	55 GPa
Shear modulus	20 GPa
Bulk modulus	42 GPa
Mohs hardness	3.0
Brinell hardness	294 MPa
CAS registry number	7440-36-0
Most stable isotopes
Main article: Isotopes of antimony
iso NA half-life DM DE (MeV) DP 121Sb 57.36% 121Sb is stable with 70 neutrons 123Sb 42.64% 123Sb is stable with 72 neutrons 125Sb syn 2.7582 y β− 0.767 125Te

Ang antimonyo (Iningles antimony) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Sb ug kaiphan nga atomik 51. Ang antimonyo mao ang metalloid.

Galeriya sa hulagway

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