Au3+ has _ configuration.
Correct answer: C. 5d8
- A. 5d7
- B. 4d9
- C. 5d8
- D. 5d10
Explanation
C is the correct answer. The electronic configuration of Au in its neutral state is [Xe] 4f14 5d10 6s1. When Au loses three electrons to form Au3+, it loses the 6s1 and two 5d electrons, leading to the configuration [Xe] 4f14 5d8.
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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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