Both these properties decrease in intensity as the elements increase in atomic number and mass proceeding down column 16 of the periodic table. Oxygen has, except for fluorine, the highest electronegativity and electron affinity of any element; the values of these properties then decrease sharply ...
Uses:Oxygen was the atomic weight standard of comparison for the other elements until 1961 when the International Union of Pure and Applied Chemistry adopted carbon 12 as the new basis. It is the third mostabundant elementfound in the sun and the earth, and it plays a part in the carbon-n...
Oxygen is the eighth element on the periodic table of elements, where it's represented by the letter O. An element is the simplest form of matter there is--it can't be broken down into any simpler parts. Chemists call the air that we breathe O2 because there are two atoms in the ...
About this element Symbol: O Date of discovery:1774 Name origin:Greekoxusandgennan Appearance:colorless Discoverer:Joseph Priestley/Carl Scheele Obtained from:liquid air Melting point:54 K Boiling point:90 K Density[kg/m3]:1.429 Molar volume:17.36 × 10-6m3/mol ...
Theoxygenelement is present in the periodic table with the chemical symbolO. It is one of the most important elements on Earth. In fact, without oxygen, most life would not be able to survive. Today, it makes up about 21% of the atmosphere, but the planet was very different 2.4 billion...
Element No. 8 on thePeriodic Table of the Elementsis a colorless gas that makes up 21 percent of Earth's atmosphere. Because it's all around, oxygen is easy to dismiss as dull and inert; in fact, it's the most reactive of the non-metallic elements. ...
About this element Symbol: ODate of discovery: 1774Name origin: Greek oxus and gennanAppearance: colorlessDiscoverer: Joseph Priestley/Carl ScheeleObtained from: liquid air Melting point: 54 KBoiling point: 90 KDensity[kg/m3]: 1.429Molar volume: 17.36 × 10-6 m3/molProtons/Electrons:...
Oxygen is a chemical element; it has 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. Oxygen is Earth's most abundant...
oxygenThe In My Element series celebrates the personal accounts from Chemistry – A European Journal Editorial Board members for the 2019 International Year of the Periodic Table. In this contribution, C. N. R. Rao gives his story on oxygen....
Up until the early 1990's a company in Russia sold a periodic table collection with element samples. At some point their American distributor sold off the remaining stock to a man who is now selling them on eBay. The samples (except gases) weigh about 0.25 grams each, and the whole set...