Dec 14, 2021 · Oxygen, silicon, iron and aluminum are the most abundant elements in the Earth's crust, accounting for 88.1% of its mass.

Jul 8, 2019 · Silicon - 27.7% Silicon is the second most common element present in the crust with an abundance of 276,900 ppm. Aluminum - 8.1% At 80,700 ppm, aluminum is the third most abundant element in Earth's crust.

Sep 9, 2023 · 1. The most abundant element in the Earth's crust is oxygen, which accounts for about 46% of the crust's mass. Silicon is the second most abundant element, making up approximately 28% of the crust. 2. The mantle is primarily composed of silicate minerals rich in iron and magnesium.

Sep 28, 2020 · Answer: 1. Most common elements on the earth's crust is Oxygen, silicon, aluminum, and iron. 2. The most abundant element on earth's crust is Oxygen.

Jul 23, 2019 · Here are the answers to those questions. Q3: Oxygen is the most abundant element in the Earth's crust. In terms of abundance, oxygen is the most abundant chemical element, accounting for over 47% of the planet's shell. Q4: The mantle is 44.8% oxygen, 21.5% silicon, and 22.8% magnesium in terms of chemical elements. Q5: The asthenosphere is a unique characteristic of the upper mantle. It is ...

Oct 19, 2020 · CRUST What element is the most abundant in the earth crust? The Earth's crust is known as the outemost shell of the planet, it has two different types: the continental crust which is less denser but thicker and the oceanic that is thinner but denser. The most abundant element in the Earth's crust, is obviously the oxygen that is almost 50% of the c r …

Answer: Q3. Oxygen is the most abundant element in the Earth's crust with 46.6%. Q4. The mantle is made up of 44.8% of oxygen, 21.5% of silicon, and 22.8% magnesium. Q5. The first four abundant element of upper mantle are oxygen, magnesium, silicon, and iron. Q6. Scientist figured out that the outer core must be liquid becaise S waves do not pass through it, but P waves do. Q7. The inner core ...

Sep 11, 2023 · Answer: The most abundant element in the Earth's crust is oxygen. Oxygen makes up approximately 46.6% of the Earth's crust by mass. Silicon is the second most abundant element, making up around 27.7% of the crust. Other elements found in significant quantities in the Earth's crust include aluminum, iron, calcium, …

Oct 28, 2020 · A. All organic compounds contain one or more atoms of carbon. b. The majority of organic compounds are built from carbon, hydrogen, oxygen, and nitrogen. c. By number of atoms, carbon is the most abundant element in the Earth’s crust. d. Most organic compounds are soluble in water. true or false

Aug 22, 2017 · False. Oxygen is the most abundant element in the Earth's crust. Scientists estimate oxygen covers nearly half of the mass of the crust by approximately 46.6%