Name:  Beryllium

Atomic Symbol and Mass Number: Be [4]

Electron Configurations of the Element: [He] 2S

Atomic Radii: 112 pm

Electron Affinity: 0

Oxidation states: +2, +1

Electronegativity value: 1.57

Elemental Group: Alkaline Earth Metal

Uses and properties:

• Toxic and carcinogenic

• Light, silver-gray, soft metal

• Strong but brittle

• Highest melting point among light metals

• High thermal conductivity and nonmagnetic

• Pure lithium metal in rechargeable lithium ion batteries

• Radiation windows for x-ray tubes

• Alloys are used in aerospace industries as light-weight materials

• Production of spark-proof tools (alloy with copper)

• Reflector and neutron absorber, shield, and moderator in nuclear reactors

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Lewis diagram: