Inorganic chemistry is that chemistry which deals with the synthesis and behaviour of inorganic and organ metallic compounds. This part of chemistry covers all chemical compounds except the myriad organic compounds (carbon based compounds, usually containing C-H bonds), which are the subjects of organic chemistry.
Allotropy: The two or more than two forms of any element are called allotropes; it can also be defined as a variant of a substance consisting of only one type of atom. It is a new molecular configuration, with new physical properties. Substances that have allotropes include carbon, oxygen, sulfur, and phosphorous while the presence of elements in more than one form is called allotropy.
Phosphorescence: It is that phenomena of substance, when any substance like calcium sulfide etc is kept open in sunlight then the optical radiations are absorbed by such substance and even after removing sunlight source and it also emits radiation.
Fluorescence: If the visible light is absorbed by certain substances then their atomic electrons become excited and sometimes, when these electrons come in their original state then different radiations of different wavelengths are obtained then it is said to be the phenomena of fluorescence.
Efflorescence: The salts like NaCl. 10 H2O, Na2CO3.10 H2O, etc. have an excess of water and when these are left in the air then these water crystals vaporize and salts transform into crystal powder, this phenomenon is called efflorescence. etc in this book
|Book: Fundamental Inorganic Chemistry|
Author: Pl Soni
Publisher: Sultan Chand & Sons – Tb