It has five electrons in its outer shell and is, therefore, trivalent in most compounds. Nitrogen is a relatively inert molecule. The unique physical and chemical properties of nitrogen provide some … Liquid nitrogen is used as a refrigerant. Haber-Bosch’s method, The most famous elements in 5A group (Nitrogen properties, Preparation & compounds) Elements of p-block, General properties of group 5A elements (group 15) Nitrogen, for example, is a gas that liquefies at about −200° C and freezes around −210° C, whereas bismuth is a solid melting at 271° C and boiling at about 1,560° C. Chemically, too, the range in properties is wide, nitrogen and phosphorus being typical nonmetals; arsenic and antimony, metalloids; and bismuth, a metal. Introduction. It is also the most common element of our air, in the form of nitrogen gas. It is common in organisms, especially in proteins, which are rich with amine groups. Nitrogen’s inert qualities find use in the chemical and petroleum industries to blanket storage tanks with an inert layer of gas. When I worked in a surfactant company nitrogen was often used to protect the products made by using a blanket of nitrogen. This blanket of nitrogen helps to prevent the oxidation of the product. What is nitrogen? 1. Common chemical compounds are also provided for many elements. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Nitrogen is a nonmetal found throughout our world. Nitrogen plays an important role in the life of plants and animals on Earth through the nitrogen cycle. Nitrogen is a gas at room temperature. It has an atomic number of seven, meaning a nitrogen atom has seven protons (and seven electrons). Click here to learn more about the nitrogen cycle. It has a grade 3 electronegativity and in the periodic table it is represented by the letter “N”. Nitrogen gas is produced in large volumes in both gas and liquid form by cryogenic distillation, and cryogenic processes can produce very pure nitrogen. Under normal conditions it is presented in a gaseous state and is called a diatomic or molecular gas. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. Nitrogen atoms have seven electrons and 7 protons with five electrons in the outer shell. Nitrogen is one of the most common elements on Earth, and it is one of many nonmetals. The triple bond in molecular nitrogen (N 2) is one of the strongest known. Chemical Properties of Nitrogen. 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