Which of following is/are correctly matched ?

Options

A. d-block element: Electronic configuration is `ns^(0-2)(n-1)d^(1-10)`
B. p-block element:electronic configuration is `ns^(1-2)np^(1-6)`
C. s-block element:electronic configuration is `ns^(1-2)`
D. Ce: F-blocks's first member

Explanation

To determine which of the given options regarding electronic configurations of various block elements are correctly matched, we will analyze each option step by step.

### Step 1: Analyze D Block Elements
- **Statement**: D block elements electronic configuration is NS 0 to 2, N-1, D 1 to 10.
- **Explanation**: The general electronic configuration for D block elements is indeed given by \( n-1 d^{1-10} ns^{0-2} \). This means that the D block elements can have up to 10 electrons in the d subshell and 0 to 2 electrons in the s subshell of the outermost shell.
- **Conclusion**: This statement is correct.

### Step 2: Analyze P Block Elements
- **Statement**: P block electronic configuration is NS 1 to 2 and P 1 to 6.
- **Explanation**: The general electronic configuration for P block elements is \( ns^{1-2} np^{1-6} \). This indicates that P block elements can have 1 to 6 electrons in the p subshell and 1 to 2 electrons in the s subshell.
- **Conclusion**: This statement is also correct.

### Step 3: Analyze S Block Elements
- **Statement**: S block element electronic configuration is NS 1 to 2.
- **Explanation**: The general electronic configuration for S block elements is \( ns^{1-2} \). This means that S block elements can have either 1 or 2 electrons in the s subshell.
- **Conclusion**: This statement is correct as well.

### Step 4: Analyze F Block Elements (Cerium)
- **Statement**: Cerium is F block first member.
- **Explanation**: Cerium (Ce) has an atomic number of 58 and belongs to the lanthanoid series, which starts from Lanthanum (atomic number 57) and goes to Lutetium (atomic number 71). Thus, Cerium is actually the second member of the F block elements, not the first.
- **Conclusion**: This statement is incorrect.

### Final Conclusion
Based on the analysis:
- The first, second, and third statements regarding D block, P block, and S block elements are correctly matched.
- The statement regarding Cerium being the first member of the F block is incorrect.

### Summary of Correct Matches
1. D block elements: Correct
2. P block elements: Correct
3. S block elements: Correct
4. Cerium: Incorrect

### Final Answer
The correctly matched options are the first three (D block, P block, and S block elements).

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