Oxygen, Silicon, Aluminium, Iron, Calcium, Sodium, Potassium, & Magnesium.
Explaination:
- About 98% of the total crust is made up of eight elements as oxygen, silicon, aluminium, iron, calcium, sodium, potassium, and magnesium. The rest is constituted by elements like titanium, hydrogen, phosphorous, manganese, sulphur, carbon, nickel and others