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Anions are greater in size than their parent atoms because they gain one or more electrons, leading to increased electron-electron repulsion in the electron cloud. This added repulsion causes the electron cloud to expand, resulting in a larger ionic radius. Additionally, the increased negative charge reduces the effective nuclear charge experienced by the outer electrons, allowing them to spread out further from the nucleus.
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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
Why size of atom is greater there parent atom?
The size of an atom can be greater than that of its parent atom due to the addition of electron shells or energy levels. When an atom gains electrons, particularly in the case of anions, the increased electron-electron repulsion can lead to a larger atomic radius. Additionally, if the atom undergoes ionization and gains protons, the increased positive charge can pull electrons closer, but if more electron shells are added, the overall size still increases. Therefore, the addition of electrons and the resulting changes in electron distribution can affect atomic size.
What are anions of a particular element generally larger than the atoms of the same element?
Its C. Anions gain electrons without gaining protons. This increased negative charge with no increase in positive charge allows electrons to orbit farther from the nucleus; therefore the ions are larger.
Why is the size of an ion greater than its parent atom?
Only the anion is greater than the atom because gained an electron.
What conclusions can we make about the size of cations neutral atoms and anions?
Cations are smaller then neutral atoms and anions are larger.
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 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
Why is an anion larger than its parent atom?
The size of an anion is larger than its parent atom because anions are formed due to the gain of electrons. When the electrons increase, there are still the same number of protons. The attractive force is thus reduced as there are the same number of protons attracting an increased number of electrons. This causes the electrons to not be bound as tightly to the nucleus resulting in an increase in size. In other words, anions have one or more extra electrons that contribute to the size of the atom. These extra electrons increase its size and make it larger than the neutral atom.
What is Ionic size?
During reaction of metals and non-metals, metal atoms tend to loose electrons and non-metal atoms tend to gain electrons. This transfer of electrons has a predictable offect on the size of the ions that form, and that predictable effect on the size is called the ionic size.
What are anions of a particular element generally larger than the atoms of the same element?
Its C. Anions gain electrons without gaining protons. This increased negative charge with no increase in positive charge allows electrons to orbit farther from the nucleus; therefore the ions are larger.
Are cations bigger than anions in terms of size?
In general, cations are smaller than anions in terms of size.
Why is the size of an ion greater than its parent atom?
Only the anion is greater than the atom because gained an electron.
Why ionic radii of negative ions are larger then the size of their parent atoms?
Because electrons are gained.
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 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
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.
