Name: Hafnium

Atomic Symbol and Mass Number: Hf [72]

Electron Configuration: [Xe] 4f¹⁴ 5d² 6s²

Atomic Radii: 159 pm

Electron Affinity: 0 kJ/mol

Oxidation States: +4

Electronegativity Value: 1.3

Elemental Group: Transition Metal

Uses and Properties:

• Hafnium is a bright, silvery-gray metal that is very ductile. 

• Its melting point is about 2,150°C (3,900°F) and its boiling point about 5,400°C (9,700°F). Its density is 13.1 grams per cubic centimeter.

• A shiny, silvery metal that resists corrosion and can be drawn into wires. 

• Hafnium is a good absorber of neutrons and is used to make control rods, such as those found in nuclear submarines.

• It also has a very high melting point and because of this is used in plasma welding torches.

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Lewis Diagram: