Yttrium is a soft, silver-metallic, bright and awful apparent alteration metal in accumulation 3. As accepted by alternate trends, it is beneath electronegative than its antecedent in the group, scandium, and beneath electronegative than the next affiliate of aeon 5, zirconium; additionally, it is of commensurable electronegativity to its almsman in its group, lutetium, due to the lanthanide contraction.
Yttrium is the aboriginal d-block aspect in the fifth period.This blur can ability a array of 10 μm if yttrium is acrimonious to 750 °C in baptize vapor. If cautiously divided, however, yttrium is actual ambiguous in air; balance or turnings of the metal can burn in air at temperatures beyond 400 °C.
The authentic aspect is almost abiding in air in aggregate form, due to passivation consistent from the accumulation of a careful oxide (Y2O3) blur on its surface. Yttrium nitride (YN) is formed if the metal is acrimonious to 1000 °C in nitrogen.
more about: Yttrium oxide
from: Metal Powder
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