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Why are size of cations always smaller and size of anions always bigger than the corresponding atom?
anions always gain extra electrons casing the ionic radius to increase but cations remove electrons causing the ionic radius to decrease .therefore anionic radius is greater than cationic radius
Why AgBr shows both frenkel and schotky defect?
When the both the cations and anions are absent from the crystal lattice it is called Schottky defect. This defect is shown when the anions and cations have comparable size. The Frenkel defect is shown by ionic molecules when their is a large difference in the size of anions and cations. The smaller anions are very much mobile and they occupy interstitial site. AgBr has cations and anions with comparable size and hence it shows Schottky defect but the Ag+ ion is very much mobile and it easily occupies interstitial place getting dislocated from its original place, that's why the ionic crystal AgBr shows both Schottky and Frenkel defects.
O2- is larger than O?
Yes, because anions are always bigger than the atom in its ground state. Cations are smaller
Why are cations smaller than parent ions?
Cations and their parent atoms have the same number of protons in the nucleus but different numbers of electrons. As cations have less number of electrons, the effective nuclear charge increases and as such,the remaining electrons are more tightly bound by the nucleus. Thus, cations are smaller in size compared to their parent atoms.
Why cationic molecular ions are greater then anionic one?
Cationic molecular ions are usually smaller than their corresponding anionic ions because they have lost an electron and thus have a higher effective nuclear charge that pulls the remaining electrons closer to the nucleus, resulting in a smaller size. Additionally, cationic ions often have a stable electron configuration (e.g., a noble gas configuration) that contributes to their smaller size.
What conclusions can we make about the size of cations neutral atoms and anions?
Cations are smaller then neutral atoms and anions are larger.
What are smaller cations or anions?
cations are smaller than the atoms from which they were formed because they lost an electron thus becoming smaller in size. anions are bigger than the atoms from which they were formed because they gained an electron and increasing in size. the greater the nuclear charge, the smaller they are. Source(s):general chemistry 4th edition textbook
How do the sizes of cations and anions relate to the atoms they form from?
Cations are formed when atoms lose electrons and hence are smaller in size than the corresponding atoms. Anions are formed when atoms gain electrons and hence are larger in size than the corresponding atoms.
What does the arrangement of cations and anions depend on?
The arrangement of cations and anions in a compound depends on the charge of the ions and the overall stoichiometry of the compound. The goal is to achieve electrical neutrality by balancing the positive and negative charges. This often results in a specific crystal lattice structure being formed.
Are cations or anions soluble in water?
In general, cations are soluble in water because they form positive ions that can attract the negatively charged oxygen atoms in water molecules. Anions can also be soluble in water depending on their size and charge, but some large and highly charged anions are less soluble due to stronger electrostatic interactions with water molecules.
Why are size of cations always smaller and size of anions always bigger than the corresponding atom?
anions always gain extra electrons casing the ionic radius to increase but cations remove electrons causing the ionic radius to decrease .therefore anionic radius is greater than cationic radius
What do all of the cations have in common?
All cations have a positive charge, which results from the loss of one or more electrons, giving them fewer electrons than protons. This positive charge allows cations to interact with anions (negatively charged ions) and participate in ionic bonding. Additionally, cations can vary in size and charge, influencing their chemical behavior and reactivity in different compounds and solutions.
Why AgBr shows both frenkel and schotky defect?
When the both the cations and anions are absent from the crystal lattice it is called Schottky defect. This defect is shown when the anions and cations have comparable size. The Frenkel defect is shown by ionic molecules when their is a large difference in the size of anions and cations. The smaller anions are very much mobile and they occupy interstitial site. AgBr has cations and anions with comparable size and hence it shows Schottky defect but the Ag+ ion is very much mobile and it easily occupies interstitial place getting dislocated from its original place, that's why the ionic crystal AgBr shows both Schottky and Frenkel defects.
What is bigger city dublin or Paris in terms of city size?
Paris.
Which group of elements form cations?
what are true about cationA.Metals are not likely to form cations.B.Cations are always smaller than the neutral form of the element.C.Cation size decreases as you go down a group.D.All cations are larger than any anion.E.Cations cannot form in nature.
O2- is larger than O?
Yes, because anions are always bigger than the atom in its ground state. Cations are smaller
Why are cations smaller than parent ions?
Cations and their parent atoms have the same number of protons in the nucleus but different numbers of electrons. As cations have less number of electrons, the effective nuclear charge increases and as such,the remaining electrons are more tightly bound by the nucleus. Thus, cations are smaller in size compared to their parent atoms.
