Join now. But, oxygen gas is actually odourless, tasteless and colourless. Comprehensive data on the chemical element Oxygen is provided on this page; including scores of properties, element names in many languages, most known nuclides of Oxygen. Chemical Properties of Oxygen At standard temperature and pressure (STP), two atoms of the element bind to form dioxygen, a colorless, odorless, tasteless diatomic gas with the formula O 2 . Chemical properties of oxygen Get the answers you need, now! Oxygen is part of a small group of gasses literally paramagnetic, and it’s the most paramagnetic of all. Log in. This means they behave as magnets in the presence of an external magnetic field, because of the spin magnetic moments of the unpaired electrons in the molecule. It is reactive and forms oxides with every element except helium, neon, krypton, and argon. Liquid oxygen can then be solidified or freeze at a temperature of -218.4°C, Your email address will not be published. Oxygen (O), nonmetallic chemical element of Group 16 (VIa, or the oxygen group) of the periodic table. The solubility of oxygen in water is temperature-dependent, and about twice as much (14.6 mg/L) dissolves at 0 °C than at 20 °C (7.6 mg/L). A constant load of 2 N and sliding speed of 4 cm/s with stroke length of 4 mm was used to measure the lubrication properties of h-BN nanofluid additives in 10W30 oil under the above mentioned steel pairs. Oxygen exists in three allotropic forms. Physical properties are usually observed using our senses such as color, density, lightning, freezing point, boiling point, melting point, hardness, and smell. Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element. Diatomic oxygen gas currently constitutes 20.8 percent of the volume of air. The physical and chemical properties of oxygen are: Oxygen is available in all three forms, solid, gas and liquid. Oxygen exhibits many unique physical and chemical properties. It is capable of mixing with all elements except inert gases and is particularly involved in combustion processes. Oxygen gas is not dense, reacts readily with many other elements, and is completely odorless. In normal conditions oxygen is a colourless, odourless and insipid gas; it condensates in a light blue liquid. Free oxygen is too chemically reactive to appear on Earth without the photosynthetic action of living organisms, which use the energy of sunlight to produce elemental oxygen from water. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. (adsbygoogle = window.adsbygoogle || []).push({}); Oxygen is an important part of the atmosphere and is necessary to sustain terrestrial life. Oxygen is a strong oxidizing agent and has the second-highest electronegativity of all reactive elements, second only to fluorine. During the chemical reaction, we observed chemical properties. It converts from a gaseous state to a liquid state at a temperature of -182.96°C when it takes on a slightly bluish color. What is oxygen? At 25 °C and 1 standard atmosphere (101.3 kPa) of air, freshwater contains about 6.04 milliliters (mL) of oxygen per liter, whereas seawater contains about 4.95 mL per liter. Oxygen occurs in many compounds, including water, carbon dioxide, and iron ore e.t.c. 1. 1. The chemical and physical properties of oxygen make it different from other elements. The more we understand the nature of the substance, the better we can understand it. Compounds that can be prepared that contain an alkali metal, M, and oxygen are therefore the monoxide, M 2 O, peroxide, M 2 O 2, superoxide, MO 2, and ozonide, MO 3. Oxygen exists in all three forms - liquid, solid, and gas. The elemental structure is actually a cubic cr… Elemental O2 only began to accumulate in the atmosphere after the evolutionary appearance of photosynthetic organisms, roughly 2.5 billion years ago. Physical Properties of Oxygen. The el­e­ment is also present in min­er­als in the form of salts and ox­ides. The common reaction in which it unites with another substance is called oxidation. Ask your question. CC BY-SA 3.0. http://en.wiktionary.org/wiki/paramagnetic Allotropes are forms of an element with different physical and chemical properties. The prominent exception is hydrofluoric acid, HF, which will decompose quartz to form first silicon fluoride SiF4, then hydrofluorosilicic acid: SiO2 is also attacked by alkaline substances (like potassium hydroxide, KOH). Chemical properties are those that you can observe only if matter experiences a chemical change or chemical reaction.In other words, you need to change the chemical identity of a sample in order to observe and measure its chemical properties. Log in. Observe and record some chemical and physical properties of oxygen. Oxygen is more soluble in water than nitrogen is; water contains approximately one molecule of O2 for every two molecules of N2, compared to an atmospheric ratio of approximately one to four. The chemical properties of oxygen are given below; It present in gaseous oxygen form in normal temperature. Join now. Physical Properties. Chemical properties and physical properties are characteristics of matter that can be used to help identify and describe it. Your email address will not be published. Oxygen is a colourless, odourless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere. It is a highly reactive substance and must be segregated from combustible materials. In normal triplet form, O2 molecules are paramagnetic. Both liquid and solid O2 are clear substances with a light sky-blue color caused by absorption in the red (in contrast with the blue color of the sky, which is due to Rayleigh scattering of blue light) . Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element. Graphene gas-barrier performance holds great interest from both scientific and technological perspectives. High-purity liquid O2 is usually obtained by the fractional distillation of liquefied air. Boundless vets and curates high-quality, openly licensed content from around the Internet. 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. CC BY-SA 3.0. http://en.wikipedia.org/wiki/Oxygen Liquid oxygen is attracted to a magnet to a sufficient extent that, in laboratory demonstrations, a bridge of liquid oxygen may be supported against its own weight between the poles of a powerful magnet. How it spread, diagnose & treated? Properties of water include its chemical formula H2O, density, melting, boiling point & how one molecule of water has two hydrogen atoms covalently bonded to a one oxygen atom. It's the essential element in the respiratory processes of most of the living cells and in combustion processes.Oxygen supports combustion, combines with most elements, and is a component of hundreds of thousands of organic compounds.Oxygen can be separated from air by fractionated liquefaction and distillation. 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