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Chemistry · Classification of Elements and Periodicity in Properties
हिन्दीMatch List-I with List-II: List-I List-II A \( \text{f} \)-Block Elements I Outer electronic configuration \( (\text{n}-2)\text{f}^{1-14}(\text{n}-1)\text{d}^{0-1}\text{ns}^2 \) B \( \text{d} \)-Block Elements II Outer electronic configuration \( (\text{n}-1)\text{d}^{1-10}\text{ns}^{0-2} \) C Representative Elements III Outer electronic configuration \( \text{ns}^1\text{--}\text{ns}^2\text{np}^6 \) D Inner-Transition Series IV Lanthanoids and Actinoids Choose the correct answer from the options given below:
Match List-I with List-II:
| List-I | List-II | ||
|---|---|---|---|
| A | \( \text{f} \)-Block Elements | I | Outer electronic configuration \( (\text{n}-2)\text{f}^{1-14}(\text{n}-1)\text{d}^{0-1}\text{ns}^2 \) |
| B | \( \text{d} \)-Block Elements | II | Outer electronic configuration \( (\text{n}-1)\text{d}^{1-10}\text{ns}^{0-2} \) |
| C | Representative Elements | III | Outer electronic configuration \( \text{ns}^1\text{--}\text{ns}^2\text{np}^6 \) |
| D | Inner-Transition Series | IV | Lanthanoids and Actinoids |
Choose the correct answer from the options given below:
Correct answer · Option 4
A-(I), B-(II), C-(III), D-(IV)
Explanation
f-Block elements have general outer electronic configuration \( (n-2)f^{1-14}(n-1)d^{0-1}ns^2 \), d-block elements have \( (n-1)d^{1-10}ns^{0-2} \), representative elements span s and p blocks with \( ns^1 \) to \( ns^2np^6 \), and inner-transition series comprises lanthanoids and actinoids.
