Symbol:
Ho
Atomic Number:
67
Atomic Weight:
164.93032
Element Classification:
Discovered By:
J.L. Soret
Discovery Date:
1878 (Switzerland)
Name Origin:
Holmia, the Latinized name for Stockholm, Sweden.
Density (g/cc):
8.795
Melting Point (K):
1747
Boiling Point (K):
2968
Appearance:
Fairly soft, malleable, lustrous, silvery metal
Atomic Radius (pm):
179
Atomic Volume (cc/mol):
18.7
Covalent Radius (pm):
158
Ionic Radius:
89.4 (+3e)
Specific Heat:
0.164
Fusion Heat (kJ/mol):
n/a
Evaporation Heat (kJ/mol):
301
Thermal Conductivity (@25°C W/m K):
(16.2)
Debye Temperature (K):
n/a
Pauling Negativity Number:
1.23
First Ionizing Energy (kJ/mol):
574
Oxidation States:
3
Electronic Configuration:
[Xe] 4f11 6s2
Lattice Structure:
Hexagonal(HEX)
Lattice Constant:
3.580
Lattice C/A Ratio:
1.570
