d-block elements are also called as __________?
Correct answer: B. Outer Transition
- A. Inner Transition
- B. Outer Transition
- C. Alkali Metals
- D. Both B & C
Explanation
d-block elements are called outer transition elements because the differentiating electron enters the penultimate, or (n-1)d, subshell. Students may choose inner transition elements by confusing d-block elements with lanthanides and actinides, whose differentiating electrons enter an inner f subshell.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
Practise Transition Elements
531 free Transition Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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