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.
Quick facts Antimony, Panagway ...
| Antimony |
|---|
51Sb |
|
|
| Panagway |
silvery lustrous gray
 |
| Kinatibuk-ang mga kinaiya |
| Ngalan, simbolo, kaiphan |
antimony, Sb, 51 |
| Paglitok |
UK [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-ti-mə-nee]];
US [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-ti-moh-nee]] |
| Kategoriyang elemento |
metalloid |
| Group, period, block |
15, 5, p |
| Gibug-aton sa atomo |
121.760(1) |
| Kontorno sa elektron |
[Kr] 4d10 5s2 5p3
2, 8, 18, 18, 5
 Electron shells of antimony (2, 8, 18, 18, 5) |
| History |
| Pagkadiskobre |
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[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 |
|
| · r |
Close
