Representative elements belong to

Options

A. s-and p-blocks
B. p-and d-blocks
C. f-block only
D. d-and f-blocks

Explanation

To solve the question regarding which groups of the periodic table the representative elements belong to, we can follow these steps:

### Step 1: Understand the Structure of the Periodic Table
The periodic table is divided into different blocks based on the electron configurations of the elements. The main blocks include:
- S-block
- P-block
- D-block
- F-block

### Step 2: Identify the Representative Elements
Representative elements are those elements that are found in the S and P blocks of the periodic table. They are characterized by having their outermost electrons in the S or P orbitals.

### Step 3: Define S-block and P-block
- **S-block**: This includes the first two groups of the periodic table (Group 1 and Group 2), which contain the alkali metals and alkaline earth metals.
- **P-block**: This includes the last six groups of the periodic table (Group 13 to Group 18), which contain elements such as boron, carbon, nitrogen, oxygen, fluorine, and the noble gases.

### Step 4: Conclusion
Since the representative elements are defined as those in the S and P blocks, we can conclude that representative elements belong to both the S-block and P-block of the periodic table.

### Final Answer
The representative elements belong to the S and P blocks of the periodic table.

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