Notes on anomalous Behaviour of Nitrogen | class 12

Nitrogen is the group of 15 elements in the periodic table. It has the atomic number 7. Nitrogen is present in the atmosphere in a gaseous state. In this article, you will learn the anomalous behavior of Nitrogen.
anomalous behavior of nitrogen
credit: https://www.britannica.com/science/nitrogen

Group 15 element contains Nitrogen, Phosphorus, Arsenic, Antimony, and Bismuth.

 To understand the anomalous behavior of nitrogen, we will compare the properties of these elements with nitrogen. 

Nitrogen shows anomalous behavior due to the following reason:


1. It is a very small size
2. It has higher ionization enthalpy
3. It has higher electronegativity due to its smaller atomic size 
4. The d orbital is absent in its valence shell


Notes on anomalous Behaviour of Nitrogen | class 12

1. At room temperature nitrogen is present in a gaseous state. While remaining elements such as phosphorus, arsenic, antimony, and bismuth are in the solid-state.


2. Due to high electronegativity, nitrogen exists as a diatomic molecule but phosphorus and remaining elements are present in tetra atomic molecular form.


Read also: Anomalous Behaviour of Beryllium


3. Nitrogen has a tendency to form pπ- pπ multiple bonds. The remaining elements do not form pπ- pπ multiple bonds. They form multiple bonds through dπ- pπ overlapping.


4. Nitrogen shows a great variety of oxidation states from - 3 to +5.  But phosphorus, arsenic, antimony, and bismuth show a limited oxidation state.


5. Nitrogen has a higher electronegativity. So in the group 15 elements, only nitrogen has the ability to form hydrogen bonding in its hydride compound. 


Ammonia is one of the best examples in which hydrogen bonds are present between molecules of ammonia. Therefore it is in a liquid state at room temperature.


6. Since d orbital is absent in the valency of Nitrogen it does not form pentahalides but the remaining elements can form painter halides


7. Due to the absence of d orbital nitrogen does not form coordination compounds. While remaining elements have the ability to form a coordination compound due to the presence of d orbital.


These properties explain the anomalous behavior of nitrogen.


Comments

Post a Comment

Popular posts from this blog

Solve 54 MCQ'S PHYSICAL chemistry for B.Sc. first year students

This article will help you to test basic knowledge of physical chemistry. We have provides 54 multiple choice questions with  Solve 54 MCQ'S PHYSICAL chemistry for B.Sc. first year students    1. Gaseous state has A. Definite shape and definite volume B. No definite shape and no definite volume C. Definite shape but no definite volume D. No definite shape but definite volume 2. Which of the following is not an assumption of the kinetic molecular theory of gas? A. Attractive forces of the gas molecules are sufficiently strong B. Molecules of the gas have constant and random motion C. Volume of gaseous molecules are negligible D. average kinetic energy of gas molecules is directly proportional to the absolute temperature of the gas 3. In case of an ideal gas compressibility factor is A. One B. Two C. Three D. Zero 4. van der Waal’s equation is for A. ideal gas B. real gas C. perfect gas D. compressed gas 5. The critical temperature of the water is 647 K, which means A. The ...
Read more

Basic Chemistry Quiz | Try to Solve 10 MCQ

Image
According to livescience.com chemistry is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy. Here you will learn basic chemistry quiz Credit:  https://www.imperial.ac.uk/ Basic chemistry quiz
Read more

8 Basic Properties of Organic Compounds

Image
Organic compounds are compounds that contain carbon as the main element and it is covalently attached to other elements such as hydrogen, sulfur, nitrogen, etc. In this article learn about basic properties of organic compound Composition - All organic compounds contain carbon. The other elements may be hydrogen, oxygen, nitrogen, sulfur or halogens. Most of the organic compounds contain covalent linkages in their molecules. Catenation - It is a linkage of an atom of the same elements to form a long chain. Catenation occurs readily in carbon.  The carbon has a tendency to form a bond with another carbon atom which gives rise to long chains, branched and rings is known as catenation.   Isomerism - It is the property shown by most of the organic compounds. Compounds having the same molecular formula but different structural formulae are called isomers and property is known as isomerism.  Due to different structures, chemical and physical properties diff...
Read more