Prove Particle and Wave Property of Electrons in Davisson and Germer’s Experiment
In 1927 Davisson and Germer observed that, a beam of electrons obtained from a heated tungsten filament is accelerated by using a high positive potential.…
Chemistry
Difference between a Particle and a Wave
A particle occupies a well-defined position in space. It is localized. It is something that is localized in space and time. And exactingly speaking, this…
The differences between sigma bond and pie bond
The differences between sigma bond and pie bond are given as follows: Sigma Bond A sigma bond is formed by the end to end overlap…
Define hydrogen bonding
When the hydrogen atom is bonded to the atoms of highly electro-negative elements such as fluorine, oxygen or nitrogen, the hydrogen atoms form a weak…
Explain Oxidation and Reduction takes place simultaneously
Based on the Classical concept: We know that when an oxidizing substance oxidizes another substance than that oxidizing substance donates electro-negative atom or radical to…
What is Pauli’s exclusion principle?
Pauli’s exclusion principle states that “No two electrons in an atom can have the same values for the 4 quantum numbers. That is in an…
The limitations of Bohr’s atomic model
Bohr’s theory of atomic model was quite successful in explaining the stability of the atom and the line spectrum of a hydrogen atom. The Bohr…
What is the Joule Thomson effect?
If a gas is compressed and then allows expanding suddenly then temperature of the gas decreases. This phenomenon is known as joule Thomson effect. Reason:…
What is liquid crystal?
Liquid Crystal State: There are some organic compounds which do not convert to transparent liquid but convert to non-transparent (turbid) liquid which melt on heating.…
Plasma state of substance
Plasma is an ionized gas. At very high temperatures 104 K to 105 K, electrons are removed from the atoms to form ions, but the system is…
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