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Asked by ronanmccluskey to Michael, Cathal on 15 Nov 2013.
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Michael Nolan answered on 15 Nov 2013:
Not sure what you mean here, there are a few ways to answer this…
The heaviest naturally occurring element in Uranium (number 92)
The most stable is iron
The most explosive are the alkali metals: lithium, potassium, cesium and francium (arises since they have one electron that they like to give away and when they do that there is a huge amount of energy released; see my answer on lithium-water interaction)
The least stable is francium
So perhaps the best answer to your question is Francium
hope this helps
M
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Comments
ronanmccluskey commented on :
it does thanks