67Ho

Holmium

Lanthanide

Holmium (Ho) is element 67, a lanthanide, in period 6 of the periodic table. Its standard atomic weight is 164.93, it melts at 1474 °C and boils at 2700 °C. Discovered by Marc Delafontaine, 1878.

Atomic Number67

SymbolHo

NameHolmium

Atomic Weight164.93 u

CategoryLanthanide

Period6

Melting Point1474 °C

Boiling Point2700 °C

Density8.795 g/cm³

Electron Config[Xe] 4f11 6s2

Discovered ByMarc Delafontaine, 1878

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