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==Key Stage 3==
===Meaning===
[[File:ThoriumSymbolThoriumSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Thorium]].]]
[[Thorium]] is a [[Actinide]] [[metal]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 90.
: [[Thorium]] is [[ductile]].
==Key Stage 4==
[[File:ThKS4.PNG|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Thorium]].]]
===Meaning===
[[Thorium]] is a [[Actinide]] [[metal]] [[element]], on the [[Periodic Table]], with 90 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About IodineThorium===
====Molecular Structure====
: [[Thorium]] has the [[Chemical Formula|chemical formula]] [[Thorium|Th]].