rhodium — Rh

The chemical element rhodium is an element of type Transition metal with the symbol Rh. It has an atomic mass of 102.9055 u and an electronic configuration of [Kr] 4d8 5s1.
Synthétique Radioactif Liquide Gaz

1966°
3727°

102.9055

-1
1
2
3
4
5
6

2
8
18
16
1

[Kr] 4d8 5s1

2.28

7.4589

Electronic configuration diagram

characteristics

Atomic number: 45
Atomic mass: 102.9055
Symbol: Rh
Melting point: 1966
Boiling point: 3727
Density: 12.41
Period: 5
Group: 9
Discovery: 1803 Wollaston
Abundance: 0.001
Radius: 1.8
Electronegativity: 2.28
Ionization: 7.4589
Isotope: 20
Electronic configuration: [Kr] 4d8 5s1
Oxidation state: -1,1,2,3,4,5,6
Electron: 2,8,18,16,1

Rhodium is a transition metal from the white platinum family, and it is one of the most expensive metals in the world. Its atomic number is 45 and its symbol is Rh. rhodium is a silvery-white metal that is very refractory and resistant to oxidation. It is one of the hardest and shinier metals, with a specific hardness of 16.3 (compared to 4.5 for gold and 5.5 for platinum). rhodium is highly wettable and highly refractory, making it the optimal metal for polishing and plating precious metals. It is also insensitive to hydrochloric acid and does not react to weak acids. rhodium is mainly used in alloys, coatings and in industrial applications. It is also used for plating jewelry and coins. rhodium is also used as a catalyst in hydrogenation processes and is very effective in converting hydrocarbons into more valuable and volatile products. Finally, rhodium is also used as a coating for glasses to increase their resistance to corrosion and heat.

Minerals containing rhodium

first name	Hardness	Density	Chemical formula
Bowieite	—	0.00	Rh₂S₃
Cherepanovite	—	9.72	RhAs
Cuprorhodsite	—	6.74	CuRh₂S₄
Ferhodsite	—	0.00	(Fe,Rh,Ni,Ir,Cu,Pt)₉S₈
Ferrorhodsite	—	5.71	FeRh₂S₄
Hollingworthite	—	7.91	RhAsS
Irarsite	—	11.00	IrAsS
Kashinite	—	9.10	Ir₂S₃
Kingstonite	—	7.52	Rh₃S₄
Konderite	—	4.73	PbCu₃Rh₈S₁₆
Miassite	—	0.00	Rh₁₇S₁₅
Palladodymite	—	0.00	Pd₂As
Platarsite	—	8.00	PtAsS
Polkanovite	—	10.22	Rh₁₂As₇
Rhodarsenide	—	11.27	Rh₂As
Rhodium	—	16.51	Rh
Rhodplumsite	—	9.00	Rh₃Pb₂S₂
Xingzhongite	—	6.64	(Cu,Pb,Fe)Ir₂S₄
Zaccariniite	—	0.00	RhNiAs