The Element Yttrium

Yttrium has a silvery-metallic luster and ignites in air. Moon rocks are known to contain yttrium although on earth it occurs in the rarest minerals. Yttrium chemically resembles the lanthanides and can appear to gain a slight pink luster on exposure to light.

The most common use of yttrium is its compounds being used to make the red color phosphors in cathode ray tube displays, such as those used for televisions. Other uses of yttrium include usage as iron garnets which are very effective microwave filters, as a catalyst for ethylene polymerization and used on the electrodes of some high-performance spark plugs.

 


Atomic Number & Chemical Properties


Element Basics:

Chemical Symbol: Y
Atomic Number: 39
Atomic Weight: 88.90585
Element Classification: Transition Metal
Discovered By: Johann Gadolin
Date of Discovery: 1789 (Finland)
Origin of Name: The Swedish village, Ytterby, where one of its minerals was first found.

How to Recognize it at a Party:

Silvery, ductile, fairly reactive metal

Seriously Atomic Information:

Density (g/cc): 4.47
Melting Point (°K): 1795
Boiling Point (°K): 3611
Atomic Radius (pm): 178
Atomic Volume (cc/mol): 19.8
Covalent Radius (pm): 162
Ionic Radius: 89.3 (+3e)
Pauling Negativity Number: 1.22
First Ionizing Energy (kJ/mol): 615.4
Oxidation States: 3
Electronic Configuration: [Kr] 4d1 5s2

Getting Intimate with Yttrium:

Lattice Structure: Hexagonal (HEX)
Lattice Constant (Å): 3.650
Lattice C/A Ratio: 1.571
Specific Heat (@20°C J/g mol): 0.284
Fusion Heat (kJ/mol): 11.5
Evaporation Heat (kJ/mol): 367
Thermal Conductivity (@25°C W/m K):
Debye Temperature (°K): n/a


Society's Questions About Yttrium:

Have you ever wondered what everyone else in the world thinks about Yttrium? Is anyone else looking for it too? If so, why? What do they want?

The following list shows the most common online questions about the element Yttrium. Are your questions the same or different from everyone else's?

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