کينډۍ:Infobox rhodium

Rhodium, ₄₅Rh
عمومي خواص
Pronunciation	/ˈroʊdiəm/ ; ROH-dee-əm
Appearance	silvery white metallic
Rhodium په دوراني جدول کې
ruthenium ← rhodium → palladium	‍
اټومي شمیره (Z)	45
گروپ, پیریود	group 9, period 5
بلاک	d-block
Element category	transition metal
معياري اټومي وزن (Ar)	کينډۍ:Val
Electron configuration	[Kr] 4d8 5s1
Electrons per shell	2, 8, 18, 16, 1
فزیکي خواص
حالت (at STP)	جامد
دويلې کيدو ټکى	2237 K (1964 °C, 3567 °F)
يشنا ټکی	3968 K (3695 °C, 6683 °F)
Density near r.t.	12.41 g/cm3
when liquid, at m.p.	10.7 g/cm3
Heat of fusion	26.59 kJ/mol
Heat of vaporization	493 kJ/mol
Molar heat capacity	24.98 J/(mol·K)
اټومي خواص
Oxidation states	6, 5, 4, 3, 2, 1, −1, −3 (an amphoteric oxide)
Electronegativity	Pauling scale: 2.28
Ionization energies	1st: 719.7 kJ/mol ; 2nd: 1740 kJ/mol ; 3rd: 2997 kJ/mol ; ;
Atomic radius	empirical: 134 pm
Covalent radius	142±7 pm
Miscellanea
Crystal structure	face-centered cubic (fcc) Face-centered cubic crystal structure for rhodium
Speed of sound thin rod	4700 m/s (at 20 °C)
Thermal expansion	8.2 µm/(m·K) (at 25 °C)
د تودوخې تېرېدنه	150 W/(m·K)
Electrical resistivity	43.3 nΩ·m (at 0 °C)
Magnetic ordering	paramagnetic
Magnetic susceptibility (χmol)	+111.0·10−6 cm3/mol (298 K)
Young's modulus	380 GPa
Shear modulus	150 GPa
Bulk modulus	275 GPa
Poisson ratio	0.26
Mohs hardness	6.0
Vickers hardness	1100–8000 MPa
Brinell hardness	980–1350 MPa
CAS Number	7440-16-6
History
Discovery and first isolation	William Hyde Wollaston (1804)
Main isotopes of rhodium
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Element navigation

PTrhodiumPT

Ru ←

iso
45Rh

ibox E

wd:Q1087

→ Pd

سرچينې

د سرچينو همدا لړليک په ليکنه کې نه ښکاري.

↑ Meija, J.; Coplen, T. B. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure Appl. Chem. 88 (3): 265–91. doi:10.1515/pac-2015-0305. {{cite journal}}: Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)
↑ "Rhodium: rhodium(I) fluoride compound data". OpenMOPAC.net. بياځلي په 2007-12-10.
↑ Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

کينډۍ لاسوند[جوړول]

سمونگران د دې کينډۍ په ازمونمخ (جوړول | هېنداره) او ازمونځايونه (جوړول) مخونو کې خپلې تجربې کولای شي.
د دې کينډۍ څېرمه مخونه.

[CIAAW2016-1] Meija, J.; Coplen, T. B. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure Appl. Chem. 88 (3): 265–91. doi:10.1515/pac-2015-0305. {{cite journal}}: Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)

[2] "Rhodium: rhodium(I) fluoride compound data". OpenMOPAC.net. بياځلي په 2007-12-10.

[3] Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

[4] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

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