Electron Configuration

[Xe] 6s2 4f13

Thulium means "cold place"
Melting Point: 1544.85 oC
Boiling Point: 1946.85 oC
Heat of Vaporization: 1462.11 J/g
Heat of Fusion: 108.92 J/g
Specific Heat Capacity: 0.160 J/g . Co or 0.04 cal/g . Co
Density: 9.33 g/cm3