39
88.906 u
Y
Yttrium
Transition Metal
Atomic Structure
Physical State
Group
3
Period
5
Block
d
Electron Configuration
[Kr] 4d¹ 5s²
Physical Properties
Atomic Mass:
88.906 u
Electronegativity:
1.22
Atomic Radius:
219 pm
Ionization Energy:
6.217 eV
Density:
4.469 g/cm³
Melting Point:
1799 K
Boiling Point:
3609 K
Historical Information
Discovered By:
Johan Gadolin
Year Discovered:
1794