Palladium

Located at Group 10 and Period 5 is the element used in jewelry, watch - making, aircraft spark plugs and many other high - cost objects. This is Palladium.

Rolex Watch

First discovered along in 1802 by William Hyde Wollaston and isolated also by William Hyde Wollaston in 1802.

William Hyde Wollaston

Palladium was isolated in the same ore Rhodium was discovered, which Rhodium was discovered in a year later ( 1803 ). William Hyde Wollaston was studying a Platinum Ore which at William's time was not actually well known by scientists. However, scientists that time knew that Platinum Ore might have came from South America. As for what element it contains, most of the scientist are clueless.

Palladium was discovered and isolated by William while he was dissolving a Platinum ore in a mixture of hydrochloric acid and nitric acid. The Platinum dissolved and he discovered that a second metal was left behind, which after that was called Palladium.

Sulfidic Serpentite

Because Palladium is one of the Rare Earth Metal, so Palladium is very hard to find. It is estimated to be only 1 to 10 parts per trillion. Palladium usually occurs in a pure form, or exist with other rare earth metals. Some ore that contain Palladium are ores such as Sulfidic Serpentite, which contains both Platinum and Palladium.

Palladium was thought to be not so toxic. Well, it was true. Palladium was poorly absorbed by the body when ingested. However, it will still cause skin, eye or respiratory tract irritation, ingesting Palladium might also cause skin sensitisation. Palladium in liquid form may also cause burns to skin and eyes.

Atomic Number : 46
Name : Palladium
Latin Name : Palladium
Electrons per Shell : [ 2, 8, 18, 18 ]
Discoverer : William Hyde Wollaston ( 1802 )
Isolator : William Hyde Wollaston ( 1802 )
Element's : Atomic Mass : 106.42 u
                  : Density : 11.9 g/cm³
                  : Type : Transition Metal
Chemical Properties : 

Palladium - 106

• Resists corrosion of air
• Dissolves in hot acids
• Dissolves in Aqua Regia
• 53 isotopes : 3 of them are :
     Palladium - 104 : Protons : 46
                               : Neutrons : 58
                               : Electrons : 46
    ( Half Life : Stable )
  
     Palladium - 105 : Protons : 46
                               : Neutrons : 59
                               : Electrons : 46
    ( Half Life : Stable )
  
     Palladium - 106 : Protons : 46
                               : Neutrons : 60
                               : Electrons : 46
    ( Half Life : Stable )

Physical Properties :

• Soft
• Silvery - White
• Malleable
• Ductile
• Melting Point : 1560 degrees Celsius ( 2840 Fahrenheit )
• Boiling Point : 2927 degrees Celsius ( 5300.6 Fahrenheit )

How Palladium got its name?

Palladium gots its name from the Second - Largest asteroid in the asteroid belt, named Pallas. Pallas had just been discovered in 1802. The asteroid itself was named after the ancient Greek goddess Pallas Athena.

Pallas Athena

Uses

The largest use of Palladium today is in catalytic converters. Besides, Palladium is used in jewelry, dentistry, watches making, blood sugar test strips, aircraft spark plugs, surgical instruments, and electrical contacts. Palladium is also used to make professional transverse (concert or classical) flutes.

Different Spark Plugs

THIS IS THE END OF PALLADIUM
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