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Relating to, measured from, or as if observed from the earth's center.
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Helium, this noble gas has the least density at STP
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Answer:
It's true :) Hope that helps
Answer:
Aluminium was named after alum, which is called 'alumen' in Latin. This name was given by Humphry Davy, an English chemist, who, in 1808, discovered that aluminium could be produced by electrolytic reduction from alumina (aluminium oxide), but did not manage to prove the theory in practice.
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