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vickydaiberg
29.10.2020 •
Chemistry
If a neutral atom of Bromine (Br) was to gain another electron, it would have the same electron configuration as which element?
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Ответ:
Krypton (Kr)
Explanation:
We'll begin by writing the electronic configuration of bromine. This is illustrated below:
Br (35) => [Ar]4s² 3d¹⁰ 4p⁵
Since the bromine atom gains an extra electron, the number of electrons in the bromide ion, Br¯ becomes 36. Hence the electronic configuration of the bromide ion, Br¯ can be written as follow:
Br¯ (36) => [Ar]4s² 3d¹⁰ 4p⁶
Now, comparing the number of electrons in the bromide ion, Br¯ with those in the periodic table, it is evident that the bromide ion, Br¯ has the same number of electrons with krypton, Kr. Hence, the bromide ion, Br¯ and the krypton, Kr has the same electronic configuration i.e
Br¯ (36) => [Ar]4s² 3d¹⁰ 4p⁶
Kr (36) => [Ar] 4s² 3d¹⁰ 4p⁶
Ответ:
The Introduction
Explanation:
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