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What is the most abundant element on Earth?

Oxygen is the most abundant. It comprises 49.5% of the total mass of the Earth’s crust, water, and atmosphere. The second most abundant is Silicon (Si) at 27.7% of Earth’s mass. Read more…

2 comments - What do you think?  Posted by Dan - 09/17/2010 at 12:13 pm

Categories: Chemistry, Geology   Tags: ,