What are the most abundant elements on Earth?

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Offline chris

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What are the most abundant elements on Earth?
« on: 14/11/2009 10:23:42 »
I found this rather nice graphical representation of the relative abundances of the different elements on Earth, which I thought I'd share.

[attachment=10558]

(Public domain image, US Government).

Chris
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Offline lightarrow

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What are the most abundant elements on Earth?
« Reply #1 on: 14/11/2009 11:52:34 »
Thank you Chris, very nice!
However I haven't understood a thing: with "abundances of the different elements on Earth" it is meant on the entire bulk of the Earth or on the crust only?
« Last Edit: 15/11/2009 11:59:30 by lightarrow »

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Offline omid

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What are the most abundant elements on Earth?
« Reply #2 on: 14/11/2009 11:57:43 »
Isn't the chart showing the ionisation energy of the elements? [:-\]
cz omid did this kind of chart a couple of days back in chemistry class stating "Ionisation energy"

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Offline lightarrow

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What are the most abundant elements on Earth?
« Reply #3 on: 14/11/2009 12:12:50 »
Isn't the chart showing the ionisation energy of the elements? [:-\]
cz omid did this kind of chart a couple of days back in chemistry class stating "Ionisation energy"
No, it has nothing to do with ionization energy.

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Offline Bored chemist

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What are the most abundant elements on Earth?
« Reply #4 on: 15/11/2009 11:07:13 »
There is a similarity between the two sets of data. Ionisation energy and abundance tend to be higher for the lighter elements and there is a tedndency for the values to alternate high and low.
It might be interesting (if someone has the data to hand) to plot abundance vs ionisation energy and see how well correlated they are.
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Offline omid

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What are the most abundant elements on Earth?
« Reply #5 on: 15/11/2009 18:51:42 »
Omid, look at the name of the vertical scale ... It says

"Abundance, atoms of element per 106 atoms of Si"

(and that's why "Si" is shown at 106 for abundance)

"Si" means "Silicon".

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