The Element Rhodium

What is Rhodium? Element Properties & Periodic Table Info

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Definition of the Rhodium Element
A hard, durable, silvery-white metallic element that is used to form high-temperature alloys with
Platinum and is plated on other metals to produce a durable corrosion-resistant coating. Rhodium has a high reflectance and has a higher melting point and lower density than platinum.  Rhodium together with ruthenium, palladium, Osmium, iridium, and platinum form a group of elements referred to as the platinum group metals (PGM). The Atomic Number of this element is 45 and the Element Symbol is Rh.

Origin / Meaning of the name Rhodium
The name originates from the Greek word rhodon meaning rose because of the "rose color of dilute solutions of its salts".

 

Periodic Table Group and Classification of the of the Rhodium Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Rhodium
is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table. Elements classified as Transition Metals are generally described as ductile, malleable, and able to conduct electricity and heat.Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals.

Facts about the History and the Discovery of the Rhodium Element
Rhodium was discovered by William Hyde Wollaston in England, 1803

History of the Periodic Table
Check out the brief History of the Periodic Table which details dates and the names of famous scientists and chemists who contributed to the development of the Periodic Table.

Occurrence of the Rhodium Element
Obtained as a by-product of Nickel production

Abundances of the element in different environments
%
in Universe 610-8%
% in Sun 210-7%
% in Meteorites 0.000018%
% in Earth's Crust 710-8%
% in Oceans N/A
% in Humans N/A

Associated Uses of Rhodium
Alloying agent for hardening platinum and palladium
Coatings / plating

Electrodes for aircraft spark plugs
Jewelry
Oil of rhodium

Rh

The Properties of the Rhodium Element
Symbol of Element : Rh
Atomic Number : 45
Atomic Mass: 102.9055 amu
Melting Point: 1966.0 C - 2239.15 K
Boiling Point: 3727.0 C - 4000.15 K
Number of Protons/Electrons: 45
Number of Neutrons: 58
Crystal Structure: Cubic
Density @ 293 K: 12.41 g/cm3
Color :
silvery-white

The Properties of the Rhodium Element
Name of Element : Rhodium
Symbol of Element : Rh
Atomic Number of Rhodium : 45
Atomic Mass: 102.9055 amu
Melting Point: 1966.0 C - 2239.15 K
Boiling Point: 3727.0 C - 4000.15 K
Number of Protons/Electrons in Rhodium : 45
Number of Neutrons in Rhodium : 58
Crystal Structure: Cubic
Density @ 293 K: 12.41 g/cm3
Color of Rhodium :
silvery-white

Rhodium as on the Periodic Table
Check out Rhodium on the Periodic Table which arranges each chemical element according to its atomic number, as based on the
Periodic Law, so that chemical elements with similar properties are in the same column. Our Periodic Table is simple to use - just click on the symbol for Rhodium as on the Periodic Table for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element. An invaluable source of facts and information as a Chemistry reference guide.

What is Rhodium - IUPAC and the Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 and now recognises more periods and elements than Dimitri  Mendeleev knew in his day in his day but still all fitting into his concept of  the "Periodic Table" in which Rhodium is just one element that can be found.

Learn about what is Rhodium with these fast facts...
These articles contain facts and information relating to Rhodium and each of the other elements including the Periodic Symbol,  group, classification, properties and atomic number which is often referred to as the Periodic Table Number. Test your knowledge of chemistry and the Periodic Table by completing the Element Symbols and Atomic Numbers on our Blank Periodic Table. Chemistry students will also find a helpful section on Chemical Formulas.

What is the Element Rhodium

The Elements are the building blocks of Modern Science & Chemistry


 

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