Chemistry for Kids: Elements - Oxygen.
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass. At standard temperature and pressure, two.
Oxygen is a normally gaseous, nonmetallic chemical element with the symbol O and the atomic number 8. It is widely prevalent in the earth’s atmosphere, in which it is essential for the respiration of humans and other living creatures. It is also widely prevalent across 70 percent of the earth’s surface in the form of water (H2O), of which the most important compound is oxygen.
Oxygen is the chemical element with the symbol O and atomic number 8. It is the third-most common element in the universe, after hydrogen and helium. When alone, two oxygen atoms usually bind to make dioxygen (O 2), a colourless gas. It has no taste or smell. It is a pale blue as a liquid and solid. Dioxygen gas makes up 20.8% of the Earth's atmosphere. Oxygen is part of the chalcogen group on.
OXYGEN ELEMENT ESSAY. April 07, 2017 4.7 265. Oxygen, Define Oxygen At Dictionary. An answer to the question, What is the difference between a compound and a molecule. Iron Element Facts - Periodic Table Of Elements And Chemistry. Neon Is a member of the noble gas family Other elements in this family includes helium, argon, krypton, xenon, and radon. Interesting Facts About The Element.
Here oxygen element plays a key role in the formation of carbohydrate in the presence of sunlight due to its high electro-negative property. If not for an oxygen element, no other elements can replace its role. Thus oxygen is not only used as a breathing gas but also as an important chemical tool. Post navigation. Leave a Comment Cancel reply. Comment. Name Email. Type to Search. Search for.
Oxygen accounts for about 23% of the atmosphere's mass with pairs of oxygen atoms stuck together to make dioxygen molecules, but it's not just in the air, we breathe. Overall, it's the most abundant element on the earth's surface and the third most abundant in the universe after hydrogen and helium. Our planet's rocks are about 46% oxygen by weight, much of it in the form of silicon dioxide.
What is Oxygen? At the element level, oxygen is a gas (at room temperature) which is colorless, odorless and tasteless. Two oxygen atoms join to form a single oxygen molecule, hence the term O2. For animals, breathing is the most important use of oxygen and in terms of physiology, our respiratory system and circulatory system carries oxygen to our cells and organs. Why is oxygen important.