Ang rodyo (Iningles rhodium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Rh ug kaiphan nga atomik 45. Ang rodyo mao ang puthaw nga transisyon.
Quick facts Rhodium, Panagway ...
| Rhodium |
|---|
45Rh |
|
|
| Panagway |
silvery white metallic
 |
| Kinatibuk-ang mga kinaiya |
| Ngalan, simbolo, kaiphan |
rhodium, Rh, 45 |
| Paglitok |
[[Help:Pronunciation respelling key|Plantilya:Smallcaps all-dee-əm]] |
| Kategoriyang elemento |
puthaw nga transisyon |
| Group, period, block |
9, 5, d |
| Gibug-aton sa atomo |
102.90550 |
| Kontorno sa elektron |
[Kr] 5s1 4d8
2, 8, 18, 16, 1
 Electron shells of rhodium (2, 8, 18, 16, 1) |
| History |
| Pagkadiskobre |
William Hyde Wollaston (1804) |
| First isolation |
William Hyde Wollaston (1804) |
| Physical properties |
| Phase |
magahi |
| Density (near r.t.) |
12.41 g·cm−3 |
| Liquid density at m.p. |
10.7 g·cm−3 |
| Melting point |
2237 K, 1964 °C, 3567 °F |
| Boiling point |
3968 K, 3695 °C, 6683 °F |
| Heat of fusion |
26.59 kJ·mol−1 |
| Heat of vaporization |
494 kJ·mol−1 |
| Molar heat capacity |
24.98 J·mol−1·K−1 |
| Vapor pressure |
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T (K) |
2288 |
2496 |
2749 |
3063 |
3405 |
3997 |
|
| Atomic properties |
| Oxidation states |
6, 5, 4, 3, 2, 1[1], -1
(amphoteric oxide) |
| Electronegativity |
2.28 (Pauling scale) |
| Ionization energies |
1st: 719.7 kJ·mol−1 |
| 2nd: 1740 kJ·mol−1 |
| 3rd: 2997 kJ·mol−1 |
| Atomic radius |
134 pm |
| Covalent radius |
142±7 pm |
| Miscellanea |
| Crystal structure |
face-centered cubic
|
| Magnetic ordering |
paramagnetic[2] |
| Electrical resistivity |
(0 °C) 43.3 nΩ·m |
| Thermal conductivity |
150 W·m−1·K−1 |
| Thermal expansion |
(25 °C) 8.2 µm·m−1·K−1 |
| Speed of sound (thin rod) |
(20 °C) 4700 m·s−1 |
| Young's modulus |
380 GPa |
| Shear modulus |
150 GPa |
| Bulk modulus |
275 GPa |
| Poisson ratio |
0.26 |
| Mohs hardness |
6.0 |
| Vickers hardness |
1246 MPa |
| Brinell hardness |
1100 MPa |
| CAS registry number |
7440-16-6 |
| Most stable isotopes |
| Main article: Isotopes of rhodium |
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP
Plantilya:Infobox element/isotopes decay2
Plantilya:Infobox element/isotopes decay3
Plantilya:Infobox element/isotopes decay2
Plantilya:Infobox element/isotopes decay2 |
|---|
| 102Rh |
syn |
207 d |
ε |
102Ru |
| β+ |
102Ru |
| β− |
102Pd |
| γ |
-
Plantilya:Infobox element/isotopes stable
Plantilya:Infobox element/isotopes decay2 |
|
| · r |
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