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Ba - Barium

Ba - Barium

Atomic Number: 56          Period Number:  6         Group Number: 2

Barium is a soft silvery metallic alkaline earth materials. It exists in nature as compound because it react with oxygen and water. Barium is most commonly found as the mineral barite (BaSO4) and witherite (BaCO3).

 

Barium is used as a getter, a material that combines with and removes trace gases from vacuum tubes.

 

Barium sulfate and Barium carbonate are the most common compounds of barium. Barium sulfate is an important parts for white pigment. Although all barium compounds are poisonous, barium sulfate can be safely ingested since it does not dissolve in water and it is also a good absorber of X-rays, so it can be used to produce X-ray images of the intestinal tract.


Physical and Chemical properties:

Atomic Weight: 137.327

Melting Point: 1000 K

Boiling Point: 2170 K

Density: 3.62 g/cm3

Phase at Room Temperature: Solid

Element Classification: Metal

Ionization Energy: 5.212 eV

Oxidation State: +2

 

 

See also:

Wikipedia - Basics on Barium

WebElements - The basic elements of Barium

Jefferson Lab - Learning about Barium

 

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