Atomic Number 67     Atomic Mass 164.930319     Density 8.7947 g/mL

State solid     Color silvery white     Electronegativity 1.24

Melting Point 1474°C     Boiling Point 2695°C     Natural Isotope Ho-165 100%

Abbreviated Electron Configuration [Xe] 4f¹¹ 6s²

Discovered by J. L. Soret and Delafontaine in 1878.