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Why is electron affinity expressed as a negative number while the ionization energy has a positive number in calculating the energy of ion pair formation?
when dealing with atomic chemistry in most cases a negative number indicate the gaining of at least one electron and a positive number indicate the loss of an electron. the definition of electron affinity in a nutshell is the ENERGY required to add an electron to in most cases the outermost shell, so the more electron you trying to add the higher the nergy and the more negative the number would be which would represent the amount of electron added eg.. if i want to add let say 2e- to a oxygen atom then the result would be O(g) + 2e- = O2-(g) also you can see that an anion is formed. on the other hand ionization energy is the somewhat the opposite, it is the removal of the most loosely held electron from a atom in the GASEOUS state forming cation in the end. eg.. Na(g) = Na+(g) + e- . Note that while ionization MUST be in the GASEOUS state electron affinity not necessarily have to. So dont used both terms as positive or negative loosely like that its just an indication of telling us what is going on whether the atom is loosing or gaining electron/s. hope this helps .
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Why the formation of ionic bond is only occur when electrons from low ionization energy transfer to high electron affinity?
Because ions are only form by transfer of electrons and for this one one atom must have low ionization energy and other high electron affinity or their electronegativities difference is higher than 1.7.
How do you create an electron affinity reactor?
To create an electron affinity reactor you will have to use the second ionization energy.
The periodic trend for electronegativity is similar to what trend?
Ionization energy would be similar.
What has the author Vladimir Ivanovich Vedeneev written?
Vladimir Ivanovich Vedeneev has written: 'Bond energies, ionization potentials and electron affinities' -- subject(s): Ionization, Chemical bonds, Chemical affinity 'Bond energies, ionization potenitals, and electron affinities' -- subject(s): Ionization, Chemical bonds, Chemical affinity
How is electron affinity different from electrontivity?
Electron affinity is related to the formation of anions; electronegativity is related to the formation of cations.
Which determines the reactivity of the elements?
Roughly, first ionization potential and electron affinity.
Are there any trends to the periodic table?
Atomic Radii,Ionic Radii, First Ionization Energy,Second and Higher Ionization Energies, Electron Affinity.
What do you call the energy involved when an atom loses an electron?
The amount of energy required to remove an electron form an at is the ionization energy.
Does chlorine have a high electron affinity or a low ionization energy?
Chlorine has a high electron affinity due to its tendency to gain an electron to achieve a stable electron configuration. It also has a relatively low ionization energy, meaning it takes less energy to remove an electron from a chlorine atom compared to other elements.
What periodic treds exist for ionization energy?
Ionization energy increases to the right and up on the periodic table. Ionization energy is the energy required to remove an electron. It can be conceptualized as the opposite of electron affinity, though this is not precisely true.
The energy released during the ionization of a non-metal is called the?
The energy released during the ionization of a non-metal is called the ionization energy. It represents the energy required to remove an electron from a neutral atom to form a positively charged ion.
What is the relationship between the ionization energy of a mono-anion such as Cl - and the electron affinity of the neutral atom?
The ionization energy of a mono-anion such as Cl- is the amount of energy required to remove an electron from the anion to form a neutral atom. Electron affinity is the energy released when an atom gains an electron to form an anion. They are related as the ionization energy of Cl- is equal in magnitude but opposite in sign to the electron affinity of the Cl atom.
