Atomic Facts & Figures

Antimony Facts

actinium
aluminium
americium
antimony
argon
arsenic
astatine
barium
berkelium
beryllium
bismuth
bohrium
boron
bromine
cadmium
caesium
calcium
californium
carbon
cerium
chlorine
chromium
cobalt
copernicium
copper
curium
darmstadtium
dubnium
dysprosium
einsteinium
erbium
europium
fermium
flerovium
fluorine
francium
gadolinium
gallium
germanium
gold
hafnium
hassium
helium
holmium
hydrogen
indium
iodine
iridium
iron
krypton
lanthanum
lawrencium
lead
lithium
livermorium
lutetium
magnesium
manganese
meitnerium
mendelevium
mercury
molybdenum
neodymium
neon
neptunium
nickel
niobium
nitrogen
nobelium
osmium
oxygen
palladium
phosphorus
platinum
plutonium
polonium
potassium
praseodymium
promethium
protactinium
radium
radon
rhenium
rhodium
roentgenium
rubidium
ruthenium
rutherfordium
samarium
scandium
seaborgium
selenium
silicon
silver
sodium
strontium
sulfur
tantalum
technetium
tellurium
terbium
thallium
thorium
thulium
tin
titanium
tungsten
ununoctium
ununpentium
ununseptium
ununtrium
uranium
vanadium
xenon
ytterbium
yttrium
zinc
zirconium
Antimony
51Sb
Appearance
silvery lustrous gray
General properties
Name, symbol, number antimony, Sb, 51
Pronunciation UK /ˈæntɨməni/ an-ti-mə-nee;
US /ˈæntɨmni/ an-ti-moh-nee
Metallic 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
Electron shells of antimony (2, 8, 18, 18, 5)
History
Discovery 3000 BC
First isolation Vannoccio Biringuccio (1540)
Physical properties
Phase solid
Density (nearr.t.) 6.697 g·cm−3
Liquid density atm.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 53, -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
Antimony has a simple trigonal crystal structure
Magnetic ordering diamagnetic[1]
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

Content adapted from Wikipedia.org; text available under Creative Commons Attribution-ShareAlike License.

2013 Atomic-Facts.com
Diamond Cut Chart | Diamond Color Chart | Diamond Carat | Diamond Clarity Chart