what are the five most abundant elements on earth

While Earth’s composition differs from the universe as a whole, the five most abundant elements by mass are:

Oxygen: This makes up about 30.1% of Earth’s mass.

Iron: Coming in second at around 32.1%.

Silicon: This element clocks in at about 15.1%.

Magnesium: Constituting roughly 13.9% of Earth’s mass.

Sulfur: Rounding out the top five at around 2.9%.