71
Lu
lutetium
174.97

General properties

Group
group 3
Period
period 6
Category
transition metals
Standard atomic weight
174.9668(1)
Melting point
1925 K (1652 °C)
Boiling point
3675 K (3402 °C)
Phase at STP
solid

Additional properties

Block
d-block
Electron configuration
[Xe] 4f¹⁴ 5d¹ 6s²
Electrons per shell
2, 8, 18, 32, 9, 2
Electronegativity
1.27
Density
9.841 g/cm³
Oxidation states
0, +1, +2, +3 (a weakly basic oxide)
CAS Number
7439-94-3