What is the range of atomic numbers of the 3d series of transition elements?
Correct answer: B. 21-30
- A. 20-30
- B. 21-30
- C. 22-30
- D. 24-30
Explanation
The atomic number range for the 3d series, which includes the transition metals in the 3d subshell, is from 21 to 30. These elements are known for their metallic properties and the ability to form various oxidation states.
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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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