In the long form of periodic table all the non-metals are placed under

Options

A. s-block
B. p-block
C. d-block
D. f-block

Answer

To solve the question regarding the placement of non-metals in the long form of the periodic table, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Periodic Table**: The periodic table is divided into blocks based on the electron configurations of the elements. These blocks are S-block, P-block, D-block, and F-block.

2. **Identify the S-block Elements**: The S-block consists of Group 1 (alkali metals) and Group 2 (alkaline earth metals). These are primarily metals.

3. **Identify the D-block Elements**: The D-block includes the transition metals, which are also predominantly metals.

4. **Identify the F-block Elements**: The F-block consists of the lanthanides and actinides, which are inner transition metals and are also primarily metals.

5. **Identify the P-block Elements**: The P-block contains a mix of non-metals, metalloids, and some metals. Notably, it includes all the non-metals such as carbon, nitrogen, oxygen, phosphorus, sulfur, and the halogens.

6. **Conclusion**: Since the question specifically asks about the placement of non-metals, we conclude that all non-metals are placed in the P-block of the periodic table.

### Final Answer:
The correct answer is **P-block** (Option B).

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