Se mostly exists in which of the following oxidation state?
Correct answer: A. +2
- A. +2
- B. +1
- C. +3
- D. 0
Explanation
in general, the most common oxidation state of selenium is +2. This is because selenium has six valence electrons and can gain two electrons to achieve a stable noble gas configuration.Hence option A is correct.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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