71
Lu
Lutetium
174.967 | 2
8
18
32
9
2
|
71
Lu
Lutetium
174.967 | 2
8
18
32
9
2
|
| General |
|---|
| Name | Lutetium | | Symbol | Lu | | Number | 71 | | Chemical series | Lanthanides | | Group / Period | 0 / 6 | | Block | d-block | | CAS registry number | 7439-94-3 |
| Physical properties |
|---|
| State | solid | | Density | 9.841 g/cm3 | | Melting point | 1925 K (1652 °C, 3006 °F) | | Boiling point | 3675 K (3402 °C, 6156 °F) | | Critical point | |
| Atomic properties |
|---|
| Atomic Weight | 174.967 g/mol | | Crystal structure | hexagonal | | Electronegativity | 1.27 | | Atomic radius | 175 pm | | Atomic radius (calculated) | 217 pm | | Electron configuration | [Xe] 6s2 4f14 5d1 | | Electrons per shell | 2, 8, 18, 32, 9, 2 | | Number of protons | 71 | | Number of neutrons | 104 |
|
Hafnium