Yttrium was discovered by Johan Gadolin ( 1794 ). It is a soft, silvery-metallic, lustrous and highly crystalline. Very unstable in air; shaving or turnings of the metal can ignite in air at temperature exceeding at 40 degrees Celsius. Yttrium can cause Lung Disease and can make Phosphors.
Johan Gadolin ( 1794 )
Melting Point: 1795 K ( 1522 Degrees Celsius/2772 Degrees Fahrenheit )
Boiling Point: 3618 K ( 3345 Degrees Celsius/6053 Degrees Fahrenheit )
Atomic Number: 39
Density: 4.47 grams per cubic centimeter
Group: 3, Transition Metals ( D-Block )
Atomic Mass: 88.90585
Characteristics: Reacts readily with water
-Organo Yttrium Chemistry
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