Author: Windows User

When/Who
Johanna Gadolin discovered yttrium 1794 in Finland.
Electron Configuration
1s22s22p63s23p64s23d104p65s24d1

There are 8 Valence electrons in Yttrium.

Four Physical Description
Metal
Silvery white
Rough
Solid

Group-3
Period-5

Protons– 39
Electrons– 39
Neutrons– 50

Used for
Color in Television tubes
Rocket Combustion Chamber for NASA
Efficient for Transmitters
Yttrium also can be used in laser systems and as a catalyst for ethylene polymerization reactions.
Yttrium oxide also is used to produce yttrium-iron-garnets, which are very effective.

By:
October 23, 2014