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| 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
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| Gibug-aton sa atomo
|
102.90550
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| 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)
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| First isolation
|
William Hyde Wollaston (1804)
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| Physical properties
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| Phase
|
magahi
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| Density (near r.t.)
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12.41 g·cm−3
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| Liquid density at m.p.
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10.7 g·cm−3
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| Melting point
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2237 K, 1964 °C, 3567 °F
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| Boiling point
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3968 K, 3695 °C, 6683 °F
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| Heat of fusion
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26.59 kJ·mol−1
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| Heat of vaporization
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494 kJ·mol−1
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| Molar heat capacity
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24.98 J·mol−1·K−1
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| Vapor pressure
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| P (Pa)
|
1
|
10
|
100
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1 k
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10 k
|
100 k
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| at T (K)
|
2288
|
2496
|
2749
|
3063
|
3405
|
3997
|
|
| Atomic properties
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| Oxidation states
|
6, 5, 4, 3, 2, 1[1], -1
(amphoteric oxide)
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| Electronegativity
|
2.28 (Pauling scale)
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| Ionization energies
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1st: 719.7 kJ·mol−1
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| 2nd: 1740 kJ·mol−1
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| 3rd: 2997 kJ·mol−1
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| Atomic radius
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134 pm
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| Covalent radius
|
142±7 pm
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| Miscellanea
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| Crystal structure
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face-centered cubic
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| Magnetic ordering
|
paramagnetic[2]
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| Electrical resistivity
|
(0 °C) 43.3 nΩ·m
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| Thermal conductivity
|
150 W·m−1·K−1
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| Thermal expansion
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(25 °C) 8.2 µm·m−1·K−1
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| Speed of sound (thin rod)
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(20 °C) 4700 m·s−1
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| Young's modulus
|
380 GPa
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| Shear modulus
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150 GPa
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| Bulk modulus
|
275 GPa
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| Poisson ratio
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0.26
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| Mohs hardness
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6.0
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| Vickers hardness
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1246 MPa
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| Brinell hardness
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1100 MPa
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| CAS registry number
|
7440-16-6
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| Most stable isotopes
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| Main article: Isotopes of rhodium
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|
|
| · r
|
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.
- ↑ "Rhodium: rhodium(I) fluoride compound data". OpenMOPAC.net. Retrieved 2007-12-10.
- ↑ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.
