Name:  Sodium

Atomic Symbol and Mass Number: Na [11]

Electron Configuration of the Element: [Ne] 3s

Atomic Radii: 227 pm

Electron Affinity: 52.8 kJ mol-1

Oxidation states:-1

Electronegativity value: 0.93

Elemental Group: Alkali Metals

Uses and properties:

• Sodium is a soft metal that tarnishes within seconds of being exposed to air. it also reacts vigorously with water.

• Sodium vapour lamps are used for street lighting in cities

• Used as a heat transfer agent such as liquid sodium for cooling nuclear reactors

• Sodium chloride used for nutrition

• Sodium ions vital in transmission of electrical signal in the nervous systems, and maintaining water balance

 

Lewis diagram: