How does the Atomic Radius of elements change in Periodic Table?
Atomic Radius of elements change in Periodic Table: Atomic size is a periodic property. In any period as one goes from left to right (i.e., as…
Chemistry
Describe on Catalytic Properties
Catalytic Properties: Most of the transition metals and their compounds are used as catalyst. The catalytic activity of transition metals is due to the following reasons.…
Describe Formation of Coloured Ions of of D-Block Elements
Formation of coloured ions of of d-block elements: An electron jumps from one d-orbital to another. Most of the transition metal compounds are colored in…
What are Atomic and Ionic Radii of D-Block Elements
Atomic and Ionic Radii of D-Block Elements: The atomic and ionic radii of transition elements are smaller than those of ‘p’ block elements and larger…
Explain Electronic Configuration of D-Block Elements
Electronic Configuration of D-Block Elements: In the transition elements, d-orbitals of penultimate shell are successively filled. The first transition series involves the filling of 3d…
What is Pi (π) Bond?
Pi (π) bond: When two orbitals of two atoms overlap sidewise to form a covalent bond, the resulting bond is known as π-bond. It is…
Which type of Bonds is present in Ammonia Ion?
Formation of Ammonia ion (NH4) In ammonia, there are three single N-H bonds and a lone pair on the nitrogen atom. When it reacts with H+…
Explain Uses of Noble Gas
Uses of Noble Gas: (A) HELIUM Because of its lightness and non-inflammability helium is used to filling balloons for meteorological observations. Because of its lightness,…
Separation of Noble Gases in Dewar’s Method
The individual noble gases can be separated by Dewar Charcoal adsorption method. The principle involved in Dewar’s method: Activated coconut charcoal adsorbs all the Noble…
Explain Isolation of Noble Gases in Ramsay-Raleigh’s Method
The noble gases are isolated from air by removing oxygen and nitrogen from air free from carbon-di-oxide, water vapor, dust particles, etc. These are chemical…
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