39
Y
yttrium
88.906

General properties

Group
group 3
Period
period 5
Category
transition metals
Standard atomic weight
88.905 84(1)
Melting point
1799 K (1526 °C)
Boiling point
3203 K (2930 °C)
Phase at STP
solid

Additional properties

Block
d-block
Electron configuration
[Kr] 4d¹ 5s²
Electrons per shell
2, 8, 18, 9, 2
Electronegativity
1.22
Density
4.472 g/cm³
Oxidation states
0, +1, +2, +3 (a weakly basic oxide)
CAS Number
7440-65-5