Question

Chlorine shows the oxidation state + 7 but bromine does not. Why?​

Answer 1

Answer:

Solution

Cl, Br and I have only one unpaired electron in their ground state. Therefore, they exhibit an oxidation state of -1 or +1. However, they have 3, 5 and 7 unpaired electrons in their first, second and third excited states, respectively. Hence, they also exhibit the oxidation states of +3, +5 and + 7.

Explanation:

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