The ten most abundant elements on Earth make up between 96 and 99 % of our planet's mass.
00.1% H - Hydrogen | LANL
00.4% Ti - Titanium | LANL
02.1% Mg - Magnesium | LANL
02.6% K - Potassium | LANL
02.8% Na - Sodium | LANL
03.6% Ca - Calcium | LANL
08.1% Al - Aluminum | LANL
27.7% Si - Silicon | LANL
46.6% O - Oxygen | LANL
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99.0%
While not listed above, most of C - Carbon ( LANL ) on Earth is concentrated in sedimentary rocks of its crust. Part of it is fixed as organic carbon, and a greater part as carbonate carbon. It is estimated that 18% of total carbon in sedimentary rocks is organic carbon and that 82% of sedimentary carbon is bound in the form of carbonates.