What is the Difference Between Ruthenium and Rhodium?

🆚 Go to Comparative Table 🆚

Ruthenium and rhodium are both transition metals located in period 5 of the periodic table of elements. Despite their similarities, they have distinct differences in their chemical properties and uses.

Rhodium:

  • Atomic number: 45
  • Symbol: Rh
  • Group in the periodic table: Group 9
  • Family in the periodic table: Cobalt family
  • Electronic configuration: [Kr] 4d8 5s1
  • Melting point: 2237 K
  • Boiling point: 3968 K
  • Uses: Mainly used in catalytic converters for cars, as it reduces nitrogen oxides. It is also used as an industrial catalyst for nitric acid, acetic acid, hydrogenation reactions, etc.

Ruthenium:

  • Atomic number: 44
  • Symbol: Ru
  • Group in the periodic table: Group 8
  • Family in the periodic table: Iron family
  • Electronic configuration: [Kr] 4d7 5s1
  • Melting point: 2607 K
  • Boiling point: 4423 K
  • Uses: Commonly used in the production of electronic components, such as thin-film resistors, voltage dividers, and integrated circuits

In summary, rhodium is more durable and resistant to corrosion, while ruthenium is more reactive and affordable. Ruthenium is commonly used in the production of electronic components, whereas rhodium is used in catalytic converters for automobiles.

Comparative Table: Ruthenium vs Rhodium

Here is a table comparing the differences between ruthenium and rhodium:

Property Ruthenium Rhodium
Atomic Number 44 45
Atomic Symbol Ru Rh
Atomic Weight 101.07 102.9055
Phase at STP Solid Solid
Electronic Configuration [Kr] 4d8 5s1 [Kr] 4d7 5s1
Melting Point 2607 K 2237 K
Boiling Point 4423 K 3968 K
Electronic Shell Structure (Electrons per shell) 2, 8, 18, 15, 1 2, 8, 18, 16, 1
CAS Number 7440-18-8 7440-16-6
Discovered by Not mentioned H. Wollaston in 1804
Period in Periodic Table 5 5
Block in Periodic Table d -block d -block
Neighborhood Elements N/A N/A
Uses Electronics, catalysts, jewelry Jewelry, automotive industry, chemical industry

Ruthenium and rhodium are both chemical elements in period 5 of the periodic table, but they have different atomic numbers, leading to distinct chemical and physical properties. Ruthenium is more reactive and affordable than rhodium, making it popular in the production of electronics, catalysts, and jewelry. Rhodium, on the other hand, is more durable, lustrous, and resistant to corrosion, making it ideal for use in the automotive industry and chemical industry.