Svojstva

CAS broj7440-45-1
PubChem CID23974
Atomski radijus182
Atomski volumen20,67
Relativna atomska masa140,116
Blokf
Vrelište3.443
Modul stišljivosti
KategorijaLantanoidi
Kristalna strukturaJednostavna heksagonska
BojaSrebrna
Kovalentni radijus204
Gustoća6,77
Električna otpornost
Elektronska konfiguracija[Xe] 4f1 5d1 6s2
Elektrona po ljusci2, 8, 18, 19, 9, 2
Elektronegativnost1,12
Elektroni58
Skupinana
Toplina taljenja5,5
Toplina isparavanja350
Potencijal ionizacije5,539
Magnetsko redanje
Magnetska osjetljivost
Masa140,116
Maseni broj58
Talište795
NazivCerij
Neutroni82
Atomski broj140
Stanja oksidacije2, 3, 4
Perioda6
Agregacijsko stanjeČvrsto
Poissonov omjer
Protoni58
Modul smicanja
Specifični toplinski kapacitet0,192
SimbolCe
Toplinska vodljivost0,114
Van der Waalsov radijus
Youngov modul
Obilnost
Zastupljenost u Zemljinoj kori0.006%
Zastupljenost u svemiru1×10-6%
Ce Cerij 58 140.116 6 f 58 798.0 3257.0 [Xe] 4f1 5d1 6s2 2 8 18 19 9 2 6.66 0.006% Silver Cubic: Face centered 1.1 {"1":"534.4","2":"1050","3":"1949","4":"3547","5":"6325","6":"7490"} 534 50 +3,4 1.81 21.0 9.2 313.8 0.19 11.4 12.5K 0 Solid, Paramagnetic, Conductor, Lanthanide, Stable, Natural SER-i-em Malleable, ductile, iron-gray metal. Its oxides are used in the optics and glass-making industries. Its salts are used in the photography and textile industry. Used in high-intensity carbon lamps and as alloying agents in special metals. Most abundant rare earth metal. Found in many minerals like monazite sand [Ce(PO4)]. frD3126ry8o Cerium
Rodij je 1803. otkrio William Hyde Wollaston u Londonu.

Koristio je sirovu rudu platine koja je vjerojatno došla iz Južne Amerike.

Uvođenje trosmjernog katalitičkog pretvarača kompanije Volvo 1976. godine povećalo je potražnju za rodijem. Od grčke riječi rhodon, ruža 58 1803 Wilhelm von Hisinger, Jöns Jacob Berzelius, Martin Klaproth Sweden, Germany Named after the asteroid Ceres which discovered in 1801, 2 years before the element

Isotopes of Rhodium

Standard Atomic Weight

140.116(1)

Stabilni izotopi

136Ce 138Ce 140Ce 142Ce

Nestabilni izotopi

119Ce 120Ce 121Ce 122Ce 123Ce 124Ce 125Ce 126Ce 127Ce 128Ce 129Ce 130Ce 131Ce 132Ce 133Ce 134Ce 135Ce 137Ce 139Ce 141Ce 143Ce 144Ce 145Ce 146Ce 147Ce 148Ce 149Ce 150Ce 151Ce 152Ce 153Ce 154Ce 155Ce 156Ce 157Ce

Rhodium is considered to be non-toxic
Rhodium metal does not normally form an oxide, even when heated
The element's major use is as one of the catalysts in the three-way catalytic converters in automobiles.

Rhodium is used as an alloying agent for hardening and improving the corrosion resistance of platinum and palladium.

It is also used as a filter in mammography systems because of the characteristic X-rays it produces.

Rhodium is also used for jewelry and for decorations.