Explain why cation are smaller and anions larger in radii than their parent atoms?

A cation has a fewer number of electrons than its parent atom, while its nuclear charge 
remains the same. As a result, the attraction of electrons to the nucleus is more in a 
cation than in its parent atom. Therefore, a cation is smaller in size than its parent atom. 
On the other hand, an anion has one or more electrons than its parent atom, resulting in 
an increased repulsion among the electrons and a decrease in the effective nuclear 
charge. As a result, the distance between the valence electrons and the nucleus is more 
in anions than in it’s the parent atom. Hence, an anion is larger in radius than its parent 
atom.

Cation are smaller as there is loss of electron.but proton remains same thus  the power of that proton gets divided into other proton.hence the proton-electron attraction increases i.e the nuclear charge increases. Hence cation are smaller than the corresponding atoms.😘😘😘😘

Thank u for reading the answer.

this is because they have lesser electrons, while their nuclear charge remains the same. The remaining electrons are, therefore held more tightly by the protons in the nucleus and thus their radii.are smaller than the parent atoms.Cations are always smaller than their parent atoms 

cations are always smaller than therir parent atom this is because cations are formed by losing electrons but their nucleus charge remain same hence it is easy to nucles to hold  elecrons hence forces of attraction increases as a result cations are smaller than their parent atoms …

anion are always larger than their parent atom this is because anions are formed by gaining an electron but the nuclear charge remain same hence it is difficult to nutrons to all these electrons hence forces of attraction decreases and their size increases.

 

A cation is formed by loss of one or more electron from gaseous atom.In the cation in the nuclear charge remains the same as the parent atom but the number of atom decrease.This causes a decrease in size of the cation formed. 

Hello student
Cations are always smaller than their parent atoms this is because they have lesser electrons, while their nuclear charge remains the same. The remaining electrons are therefore held more tightly by the protons in the nucleus and thus their radii. are smaller than the parent atoms.This is opposite in case of anions.
Anions are always larger than their parent atoms because the addition of 1 or more electrons would result in an increased repulsion among the electrons and a decrease in the effective nuclear charge. Thus increasing its size.

A cation is smaller in size than its parent atom because of effective nuclear charge and lesser sheilding effect.

An anion is begger in size than its parent atom because of weak nuclear charge and strong sheilding effect.