Strontium

Located at group 2 and period 5 is Strontium, the most important elements on the colored television industry. The glass used to make television have colors are called Cathode Ray Tubes, which is made of Strontium.

Some modern colored television contains Strontium too.

In 1787, an unusual rock which had been found in a lead mine at Strontian, Scotland, which was investigated by Adair Crawford. He realised that it was a new mineral containing an unknown ‘earth’ which he named it Strontia.

In 1791, Thomas Charles Hope, made a fuller investigation of it and proved it was a new element. He also noted that it caused the flame of a candle to burn red.

In 1808, Sir Humphry Davy finally isolated the new element, Strontium.

Atomic Number : 38

Name : Strontium

Latin Name : Strontium

Electrons per shell : [2, 8, 18, 8, 2 ]

Discoverer : Thomas Charles Hope ( 1791)

Isolator : Sir Humphry Davy ( 1808 )

Element's : Atomic Mass : 87.62u

: Density : 2.64g/c㎥

: Type : Alkali Metal

Chemical Properties :

• Reacts vigorously in water
• Quickly tarnishes in air
• Will naturally combined with other elements or compounds that are in the air.
• Naturally occurring Strontium isotopes is stable, but it's another isotopes which is produced by nuclear fallout is called Sr-90.

Physical Properties

• Soft ( Softer than Calcium )
• Silvery - yellow in colour

THIS IS THE END OF STRONTIUM
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