Yttrium, Y, is a transition metallic element found in
Group IIIa of the
- Atomic Number : 39
- Relative Atomic Mass : 88.91
Yttrium was discovered by Gadolin in 1794AD.
Yttrium occurs in Yttria.
Yttrium was present in elevated levels in the moon rock returned by Apollo.
Yttrium, Y, is a silvery metal.
Yttrium, Y, is stable in air.
Yttrium is used
- in the red phosphors in colour TV tubes,
- in magnets in microwave equipment, and
- in lasers.
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