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19 Nov 2019
The lightest halogen is also the most chemically reactive, and reactivity generally decreases as you move down the column of halogens in the periodic table. Explain this trend in terms of periodic properties. Match the words in the left column to the appropriate blanks in the sentences on the right. add lose reduced oxidized lower higher gain high low less All of the halogens will an electron to achieve the stability of the noble gas configuration: thus, they are all powerful oxidizing agents (they are). F would be the strongest because it adds the electron to the n = 2 level, achieving the electron configuration of Ne. Because the n = 2 level lies in energy than the outermost level of the other halogens, it is more energetically favorable for F to the noble gas configuration than for the other halogens. This, combined with the ionization energy and relatively exothermic electron affinity, makes F very reactive. As you move down the column, the n level of the outermost electrons increases, making it energetically favorable for each of the successive halogens to gain an electron.
The lightest halogen is also the most chemically reactive, and reactivity generally decreases as you move down the column of halogens in the periodic table. Explain this trend in terms of periodic properties. Match the words in the left column to the appropriate blanks in the sentences on the right. add lose reduced oxidized lower higher gain high low less All of the halogens will an electron to achieve the stability of the noble gas configuration: thus, they are all powerful oxidizing agents (they are). F would be the strongest because it adds the electron to the n = 2 level, achieving the electron configuration of Ne. Because the n = 2 level lies in energy than the outermost level of the other halogens, it is more energetically favorable for F to the noble gas configuration than for the other halogens. This, combined with the ionization energy and relatively exothermic electron affinity, makes F very reactive. As you move down the column, the n level of the outermost electrons increases, making it energetically favorable for each of the successive halogens to gain an electron.
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Elin HesselLv2
17 Aug 2019