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With a tungsten filament at about 2000°K, and an iodine atmosphere of about 1 What is the reaction that corresponds to the electron affinity of iodine, I? Learn this topic by watching Periodic Trend: Cumulative Concept Videos All Chemistry Practice Problems Periodic Trend: Cumulative Practice Problems 2010-02-12 1935-01-01 Iodine is a naturally occurring element found in sea water and in certain rocks and sediments. There are non radioactive and radioactive forms of iodine. Iodine is used as a disinfectant for cleaning surfaces and storage containers and is used in skin soaps and bandages, and for purifying water. Iodine is also added to some table salt to ensure that all people in the United States have enough 2019-12-19 The electron affinity of iodine atom is less than that of fluorine atom because of increase in size of the iodine atom which decreases the effective nuclear charge on the incoming electron whereas fluorine being small has the more attraction towards the incoming electron and therefore stabilizes the electron much more than iodine does. See these articles on the shielding effect and effective nuclear charge.

Electron affinity of iodine

Simply speaking, the greater the affinity of electrons, the more eagerly the atoms of a given element join electrons to form ions (anions). The electronic affinity is most often given in electron volts (eV) or in kilojoules per mole (kJ / mol). In case of halogens the decrease in electron affinity from chlorine to iodine is due to steady increase in atomic radii from chlorine to iodine. On moving down a group the electron affinity decreases.

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low electron affinities have high electronegativities. 3. The electronegativity of an atom is defined as 1/2(electron affinity) of the atom. 4. Atoms with low ionization energies and low electron affinities have low electronegativities. 5. Atoms with high ionization energies and high electron affinities have low electronegativities.

In this nanometer size range the motion of electrons is more tightly coupled For example, lithium iodide (Li I) will dissolve in organic solvents, a property of most Empirical (Na–Fr) and predicted (Uue) electron affinity of the alkali metals Electron Affinity of Iodine is 295.2 kJ/mol.
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Electron affinity is related to electronegativity of elements. Simply speaking, the greater the affinity of electrons, the more eagerly the atoms of a given element join electrons to form ions (anions).

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2010-02-12 · Furthermore, the electron being removed when the first ionization energy is measured spends less of its time near the nucleus of the atom, and it therefore takes less energy to remove this electron from the atom. a. iodine has a lower electron affinity than bromine because it has a larger atomic radius than bromine. iodine [Kr] 5s2 4d10 5p5 By observing the ratio of the negative ion emission to the electron emission from a thermionic surface of known temperature in an atmosphere of electronegative molecules of known pressure the electron affinity of the atoms can be calculated.

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