39
Y
88.906
Yttrium
Element 39 · 88.906 u · d-block
transition metal
Named after the village of Ytterby, Sweden. Used in LEDs, lasers, and superconductors.
Phase (STP)
Solid
Melting Point
1526 °C
Boiling Point
3345 °C
Density
4.469 g/cm³
Electronegativity
1.22
Atomic Radius
180 pm
Ionization Energy
600 kJ/mol
Electron Affinity
30 kJ/mol
Discovered
1794 · Johan Gadolin
Electron Configuration
[Kr] 4d1 5s2
Electron Orbitals
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