Remember, you can keep track of all of the previous entries in this series on the site here, or on the Royal Society of Chemistry’s dedicated page. It’s not the biggest commercial use of oxygen gas, however – that title goes to smelting of iron ore into steel. Oxygen (O) is a chemical element of the periodic table, located in the group 16 and the period 2, and is having the atomic number 8. Liquid oxygen is used as an oxidiser in some rocket propellants, often with liquid hydrogen or kerosene. As such, it readily forms compounds (notably. These can be found in nature in both free and combined states. Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element. It consists of the elements oxygen, sulfur, selenium, tellurium and polonium. Oxygen atoms also make up 65% of the mass of the human body, largely found as part of water molecules. The oxygen family, also called the chalcogens, consists of the elements found in Group 16 of the periodic table and is considered among the main group elements. This is quite a handy figure, as below 17% breathing can become difficult, and above 25 % flammable organic compounds start to catch fire rather easily. However, if oxygen is cooled until it forms pale blue liquid oxygen, it can be shown to be attracted by a magnet.Īlong with nitrogen, oxygen is the other gas that makes up the bulk of the air we breathe, accounting for 21%. Oxygen is a magnetic gas, though this isn’t something that’s demonstrable in the gaseous state. Oxygen is a paramagnetic gas which is essential for respiration of living things, and also finds use as a rocket fuel. Oxygen is the p-block element and it belongs to chalcogens group. In writing the electron configuration for oxygen the first two electrons will go in the 1s orbital. Oxygen element is in group 16 and period 2 of the Periodic table. A chemical element, often simply called an element, is a type of atom which has the same number of protons in its atomic nucleus (i.e., the same atomic number, or Z ). Oxygen is the eighth element with a total of 8 electrons. Element number 8 in our International Year of the Periodic Table series is oxygen. This is a list of the 118 chemical elements that have been identified as of 2023.
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