Phosphine, Phosphorus Trichloride, Phosphorus pentachloride
Phosphorus forms two types of halides, PX3 (X = F, Cl, Br, I) and PX5 (X = F, Cl, Br). Phosphorus trichloride, PCl3
Phosphorus...
Phosphorus
Phosphorus
Phosphorus is an essential constituent of elements and plants. It has many allotropic forms; the important ones are: White phosphorus
Red phosphorus
Black phosphorus Uses of...
Nitric acid- HNO3
Nitric acid
Nitric acid is the most important oxoacid formed by nitrogen. It is a colourless liquid. In the gaseous state, HNO3 exists as a...
Oxides of Nitrogen
Oxides of nitrogen
Nitrogen forms a total of five oxides from +1 oxidation states to +5 oxidation state. The five oxides of nitrogen are N2O,...
Ammonia – Preparation and Properties
Ammonia
Ammonia molecule is trigonal pyramidal with the nitrogen atom at the apex. It has 3 bond pairs and 1 lone pair. N is sp3...
Dinitrogen – Preparation and Properties
Preparation of Dinitrogen By heating a mixture of NH4Cl and NaNO2. N2 is collected by the downward displacement of water. By treating an aqueous solution of...
Chemical Properties and Trends in Chemical Reactivity
Chemical Properties and Trends in Chemical Reactivity Like the first member of other groups, Nitrogen differs from the rest of the members of this...
Oxidation States
Negative and Positive oxidation state: The common oxidation states of these elements are – 3, + 3 and + 5.
The tendency to exhibit...
Atomic and Physical Properties of Group 15 Elements
Atomic and Ionic Radii Covalent and ionic (in a particular state) radii increase in size down the group.
There is a considerable increase in...
Group 15 Elements – Introduction
Group 15 Elements Group 15 includes nitrogen, phosphorus, arsenic, antimony and bismuth.
As we go down the group, there is a shift from non-metallic...