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Electronegativity of Uranium is 1.38. Electron Affinity. In chemistry and atomic physics, the electron affinity of an atom or molecule is defined as: the change in energy (in kJ/mole) of a neutral atom or molecule (in the gaseous phase) when an electron is added to the atom to form a negative ion. Calculated Electron Affinities Caution!

This is measured by the energy released when an element in its gaseous state accepts an electron to form an anion. So this is an exothermic reaction. They are expressed in KJ mol-1. Electron Affinity of the elements Point to the graph to see details, or click for full data on that element.

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28 Nov 2011 This chemistry tutorial describes the concept of electron affinity and covers the general periodic trend of electron affinity along with notable The Periodic Table : Atomic Radius, Ionization Energy, and Electronegativi The electron affinity of an element is the energy change which accompanies the addition of an electron to an atom in the gas phase to produce a negatively Small numbers indicate that a less stable negative ion is formed. Groups VIA and VIIA in the periodic table have the largest electron affinities. * Alkali earth Electron affinities are the negative ion equivalent, and their use is almost always confined to elements in groups 6 and 7 of the Periodic Table.

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Electron affinities are the negative ion equivalent, and their use is almost always confined to elements in groups 6 and 7 of the Periodic Table. Defining first electron affinity. The first electron affinity is the energy released when 1 mole of gaseous atoms each acquire an electron to form 1 mole of gaseous 1- ions. Electron affinity, Electronegativity, Ionization energy 1.

8, automobile 10, electron. 10, straightforward. summar y. Table 1.2. Recommended intake of fat, carbohydrates, and protein. Expressed as per Table 1.5. Reference values for energy intakes in groups of adults with sedentary and active lifestyles.a higher affinity for the enzymes.
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It declines moving down a column and rises while moving from left to right in a periodic table.
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Many species have anions that are not bound with respect to a free electron and the neutral species, in which case the calculations may give results that are not meaningful. Electron affinity decreases or increases across a period depending on electronic configuration. This occurs because of the same subshell rule that governs ionization energies.

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They are expressed in KJ mol-1. Electron Affinity of the elements Point to the graph to see details, or click for full data on that element. Up to date, curated data provided by Mathematica 's ElementData function from Wolfram Research, Inc. Click here to buy a book, photographic periodic table poster, card deck, or 3D print based on the images you see here! Electron Affinity The following periodic table shows the known electron affinity data for the elements. The values are confined to the main group elements because the transition metals, lanthanides, and actinides, which comprise the bulk of the elements, form stable cations, not stable anions. THe electron affinity is the nergy required to detach an electron from the singly charged negative ion (energy for the process X -> X + e).