Yttrium

Transition Metal

Atomic Number: 39 • Atomic Mass: 88.9060 u • Period: 5 • Group: 3

Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹

Phase: Solid

Electronegativity: 1.22

History

Yttrium has been known since ancient times

Discovered in mineral from Ytterby quarry, Sweden

Isolated as an impure oxide by Johan Gadolin

First isolated in metallic form by Friedrich Wöhler in 1828