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Abundance of elements in Earth's crust: Revision history


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  • curprev 01:3701:37, 29 November 2020 2601:1c2:5201:cda0:4caf:9a:3be0:21c5 talk 11,650 bytes −131 Removed " - the mass fraction of the element in the earth's crust, multiplied by the mass of the earth's crust.", because it's wrong. The sentence is trying to explain what "parts per million" mean, and is saying you get ppm by multiplying mass fraction by total mass. This is incorrect -- you would get the total mass of the element in question, not the ppm of the element, if you did this. undo

28 November 2020

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