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==Key Stage 3==
===Meaning===
[[File:HafniumSymbolHafniumSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Hafnium]].]]
[[Hafnium]] is a [[Transition Metal|transition metal]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 72.
: [[Hafnium]] is [[ductile]].
==Key Stage 4==
[[File:HfKS4.PNG|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Hafnium]].]]
===Meaning===
[[Hafnium]] is a [[Transition Metal|transition metal]] [[element]], on the [[Periodic Table]], with 72 [[proton]]s in the [[Atomic Nucleus|nucleus]].