Highest oxidation state among d block elements:
Correct answer: A. Os
- A. Os
- B. Mn
- C. Fe
- D. Po
Explanation
Osmium (Os) is a transition metal belonging to Group 8 (VIII B) of the periodic table and has an atomic number of 76. It has the highest oxidation state of +8 among all the elements. In its highest oxidation state, Osmium forms the compound OsO4, which is a strong oxidizing agent.
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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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