Trends in Physical Properties of Group 17 Elements
During the period 1811-1886, the halogens were discovered. They are non-metallic elements such as: Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I) and astatine (At)...
Trends in Physical Properties of Group 15 Elements
Group 15 of the modified long form periodic table consists of five elements: Nitrogen (N), Phosphorus (P), Arsenic (As), Antimony (Sb) and Bismuth (Bi). These...
Covalent bond (covalency) and its type
Introduction to Covalent bond In 1916, G.N Lewis suggested that atoms may combine with one another by mutual sharing of their valence electrons. Due to...