What is polarizing power of a cation?
The polarizing power of a cation is proportional to radiuscharge. So, polarizing power of the cation increases as the charge of the cation increases or as the radius decreases. In other words, we can say that as the charge density on cation increases, its polarising power also increases.
What is Polarising power in simple words?
The ability of an atom to deform the electron cloud of an atom is called polarizing power . while the ease with which an atom can be polarized by its neighbouring bonded atom is called polarizability. Related Answer.
What meant by polarizing power in chemistry?
The ability of a cation to distort the electron density of anion towards itself or we can say that ability of cation to pull the electron density of anion towards itself is known as Polarizing power.
What is polarizing power Example?
Re: Polarizing power For example Na+ and Cl- are the cation and anion in the ionic bond NaCl. Na+ has a polarizing power which distorts the electrons of the chlorine and attracts them towards the sodium atom. Chlorine’s tendency to have its electrons distorted is referred to as polarizability.
What is polarization and polarizability?
In short, polarization (the noun) is the displacement of positive charges relative to negative charges in a system (i.e. an atom’s nucleus vs its electrons). Polarizability refers to the difficulty with which such a displacement can be achieved.
What is polarizing power of a cation related to its size and charge?
The polarizing power of a cation is inversely proportional to its size. Smaller is the size of the cation and higher will be its charge density, which means greater concentration of charge on a smaller area. The more will be the charge density, higher will be its polarising power.
What is polarization of ions explain any two factors affecting polarizing power of cation with examples?
It is directly proportional to the charge density, which in turn is directly related to the charge on cation, while inversely related to the size of anion. The polarizing power increases with increase in the size of cation i.e. smaller cations are very effective in the polarization of anion.
What is Polarising power Class 11?
When a cation approaches an anion, the electron cloud of the anion is attracted towards a cation and hence gets distorted. The effect is called polarisation of the anion. The power of cation to polarise anion is called its polarising power and tendency of the anion to get polarised is called polarisability.
What is Polarising power in chemistry class 11?
Polarizing power can be defined as the ability of a cation to attract the electron cloud towards itself. Polarising power is proportional to charge/size.
What is cation and anion?
Cations are positively-charged ions (atoms or groups of atoms that have more protons than electrons due to having lost one or more electrons). Anions are negatively-charged ions (meaning they have more electrons than protons due to having gained one or more electrons).
What is Polarising power and Polarisability?
A cation’s ability to distort an anion is described as its polarization power, and its polarizability is defined as the anion’s tendency to become polarized by the cation.
How is Polarising power calculated?
According to Fajan’s rule, higher the charge on the cation, more is its polarizing power. The next factor which is considered is the size of the cation. Smaller the size of the cation, higher is its polarizing power. Hence, the order of polarizing power is Cs+.
What is the polarizing power of cations?
Polarizing power refers to an atoms ability to pull an electron toward it, polarizing the atom the electron comes from. Since cations are positive, they are able to attract electrons toward themselves. Anions are negative and so do not attract more electrons.
What is polarization power and polarizability?
The ability of a cation to distort an anion is called as its polarization power and the tendency of the anion to become polarized by the cation is termed as its polarizability. Polarizability is the ability to form instantaneous dipoles.
What is polarizability of an anion?
it is the ability of a cation to distort the electron cloud of an anion and the tendency of an anion to get polarised by a action is called its polarizability. Polarising power (PP) = charge/size …
What is meant by the term’polarisation’in chemistry?
Polarisation occurs when a small cation distorts the valence electron shells of a larger anion. A cation’s polarizing power relates to its ability to attract the valence electron shell (outermost electrons) from a nearby anion in ionic compounds and the tendency of the anion to become polarized by the cation is known as its polarizability.