Name: Rhodium

Atomic Symbol and Mass Number: Rh [45]

Electron Configuration: [Kr] 4d   5s

Atomic Radii: 134 pm

Electron Affinity: 109.7 kJ mol-1

Oxidation States:+6,+5,+4,+3,+2,+1, -1, -3

Electronegativity Value: 2.28

Elemental Group: Transition Metal

Uses and Properties:

• Characterized as hard, shiny and silvery 

• The major use of rhodium is in catalytic converters for cars (80%).

• Reduces nitrogen oxides in exhaust gases. 

• Rhodium is also used as catalysts in the chemical industry, for making nitric acid, acetic acid and hydrogenation reactions.

• It has a melting point of 1,966°C (3,571°F) and a boiling point of about 4,500°C (8,100°F). Its density is 12.41 grams per cubic centimeter

Lewis Diagram: