Abundances of the elements (data page) - Wiki. C1 — Crust: CRC HandbookC2 — Crust: Kaye & LabyC3 — Crust: GreenwoodC4 — Crust: Ahrens (Taylor)C5 — Crust: Ahrens (Wänke)C6 — Crust: Ahrens (Weaver)U1 — Upper crust: Ahrens (Taylor)U2 — Upper crust: Ahrens (Shaw) Mass fraction, in kg/kg.
W1 — CRC HandbookW2 — Kaye & Laby Mass per volume fraction, in kg/L. S1 — Sun: Kaye & LabyY1 — Solar system: Kaye & LabyY2 — Solar system: Ahrens, with uncertainty s (%) Abundance of the chemical elements - Wiki. Estimated proportions of matter, dark matter and dark energy in the universe.
Only the fraction of the mass and energy in the universe labeled "atoms" is composed of chemical elements. For example, the mass-fraction abundance of oxygen in water is about 89%, because that is the fraction of water's mass which is oxygen. List of Elements of the Periodic Table - Sorted by Abundance in Earth's crust.