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30 Ιουν 2023 · Electron Affinity (d ecreases down the group) Since the atomic size increases down the group, electron affinity generally decreases (At < I < Br < F < Cl). An electron will not be as attracted to the nucleus, resulting in a low electron affinity. However, fluorine has a lower electron affinity than chlorine.
- Atomic and Physical Properties of Halogens - Chemistry LibreTexts
First electron affinities have negative values by...
- Electron Affinity - Chemistry LibreTexts
For example, nonmetals like the elements in the halogens...
- Atomic and Physical Properties of Halogens - Chemistry LibreTexts
30 Ιουν 2023 · First electron affinities have negative values by convention. For example, the first electron affinity of chlorine is -349 kJ mol -1 . The negative sign indicates a release of energy.
30 Ιαν 2023 · For example, nonmetals like the elements in the halogens series in Group 17 have a higher electron affinity than the metals. This trend is described as below. Notice the negative sign for the electron affinity which shows that energy is released. Fluorine (F) -328 kJ mol-1; Chlorine (Cl) -349 kJ mol-1; Bromine (Br) -324 kJ mol-1; Iodine (I ...
First electron affinities have negative values. For example, the first electron affinity of chlorine is -349 kJ mol -1 . By convention, the negative sign shows a release of energy.
The halogens, Group 7A, have the most negative electron affinities, while the elements in Group 1A have the least negative values — in fact they are greater than or equal to zero meaning a very small amount of energy is released or energy is absorbed rather than released.
The high electronegativities and abundances of the halogens lead to high reactivity and a wide range of compound formation. The halides of many elements are discussed in the sections corresponding to those elements. The halide anions undergo plenty of aqueous redox chemistry, but there are no simple monatomic cations formed in solution. Occurrence.
31 Αυγ 2022 · Halogens, in general, readily accept electrons and have high electron affinities. The element with the highest electron affinity is chlorine, with a value of 349 kJ/mole. Chlorine gains a stable octet when it captures an electron.
