Periodic Table · element
Hafnium
Hf · Z 72
- atomic number
- 72
- atomic mass
- 178.49
- notation
- Hf
- group
- 4: Titanium
- period
- 6
- state0c
- Solid
- state20c
- Solid
- occurrence
- Primordial
- density
- 13.31
- melting pt
- 2230
- boiling pt
- 4603
- discovered
- 1922
- abundance
- 3
- ore grade
- 100
- ore minerals
- in zircon, at 1–2 % of the zirconium
- mined as
- By-product
extraction
Separated from zirconium during nuclear-fuel-cladding production, where it must be removed because it absorbs neutrons zirconium lets through.
categories
#Transition Metal#Metal
Open on the Periodic Table shelf — the interactive card, the filters, and everything alongside it.