What is the most abundant element on Earth and in the earth's crust

There are various elements that are on the earth’s crust. Now, when analyzing the most abundant element on Earth, we can say that it is oxygen. We are talking about a total of approximately 92 elements that are naturally on Earth. The eight most abundant elements in the earth’s crust are the following: 46.6% oxygen, 27.7% silicon, 8.1% aluminum, 5% of iron, 3.6% of calcium, 2.8% of sodium, 2.6% of potassium and 2.1% of magnesium. The fundamental signs of oxygen Oxygen is a chemical element of atomic number 8. Under normal conditions of pressure and temperature, two atoms of the element bond to form dioxygen, a colorless, odorless and tasteless diatomic gas with the formula O2. Now it is also noted that oxygen is the third most abundant element in the universe, after hydrogen and helium. And as we have already indicated, it is the most abundant element on Earth and in the earth’s crust. It also constitutes the majority of the mass of water and the majority component of the mass of living beings. Who discovered it? It was Carl Wilhelm Scheele who independently discovered oxygen in Uppsala in 1773, and it was Antoine Lavoisier, who coined the name oxygen in 1777. Photosynthesis and Respiration There is more information about this great element on Earth. As it is released by photosynthetic bacteria, algae and plants through photosynthesis, this element helps us to survive, so if we do not have oxygen or there is a decrease in oxygen then we can suffer hypoxemia and anoxia. Its consequences are disastrous for the body, as it can cause death. What are the uses and indications?It is noteworthy that it has a variety of uses and applications, in addition to those we already know and that it is obtained naturally in the earth’s crust. On the one hand, 55% of the world’s oxygen production is consumed in the production of steel. While another good part goes to the chemical industry. Then it is applied to medicine to rocket fuel and also to water treatment, although the toxicity of this most abundant element on Earth must be taken into account. Well, gaseous O2 can be toxic at high partial pressures and arises when partial pressures of more than 50 kPa or 2.5 times the partial pressure of O2 appear at sea level.