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10. What element does "O" represent on the periodic table?
O represents the element Oxygen on the periodic table.
Characteristics of Oxygen
Colorless, Odorless Gas - In its molecular form (O₂), oxygen is a colorless, tasteless, and odorless gas under standard conditions.
Highly Reactive - Oxygen is a highly reactive nonmetal and an oxidizing agent that readily forms compounds, especially oxides, with most elements.
Vital for Respiration - Oxygen is essential for cellular respiration in aerobic organisms, which use it to extract energy from nutrients.
Importance of Oxygen
Biological Necessity - Oxygen is critical for life on Earth. It is necessary for the respiration process in most living organisms, including humans, where it helps to release energy from food.
Industrial Uses - Oxygen is used extensively in industry, including in steelmaking, welding, and as a component in various chemical processes.
Environmental Role - Oxygen is a key part of the Earth's atmosphere and plays a crucial role in the ozone layer, which protects the planet from harmful ultraviolet radiation.
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