I thought carbon was the most common element on Earth. 05:07, 9 February 2009 (UTC)

I read that Iron is the most abundant metal in the dense metal cores of planets such as Earth. And as for a copy-paste, "On earth, oxygen is the most common element, making up about 47% of the earth's mass. Silicon is second, making up 28%, followed by aluminum (8%), iron (5%), magnesium (2%), calcium (4%), sodium (3%), and potassium (3%). All of the remaining elements together make up less than 1% of the earth's mass." One could probably say that since there's 5 times as much iron as a hundred other elements added together, it's technically correct to say it's one of the most abundant elements on Earth. Elsewhere, on Wikipedia I read "Carbon is the fourth most abundant chemical element in the universe by mass after hydrogen, helium, and oxygen." Erik Jensen (Appreciate me here!) 05:45, 9 February 2009 (UTC)
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