Which group is called buffer group of the periodic table ?

Options

A. VII
B. I
C. VIII
D. Zero group

Explanation

To solve the question "Which group is called the buffer group of the periodic table?", we can follow these steps:

### Step 1: Understand the Concept of Buffer Group
- A buffer group in the periodic table refers to a group of elements that maintain a stable state and do not readily react with other elements. This stability is often due to their electronic configuration.

### Step 2: Identify the Groups in the Periodic Table
- The periodic table is divided into several groups (columns), each containing elements with similar properties. The groups are numbered from 1 to 18.

### Step 3: Analyze the Options Given
- The options provided are:
- Option A: Group 7
- Option B: Group 1
- Option C: Group 7 (repeated)
- Option D: Group 0

### Step 4: Recall the Characteristics of Group 0
- Group 0, also known as Group 18, consists of the noble gases (e.g., Helium, Neon, Argon). These gases have a complete outer electron shell, making them very stable and unreactive.

### Step 5: Conclusion
- Since the noble gases do not lose or gain electrons easily due to their stable electronic configuration, they are referred to as the buffer group of the periodic table. Therefore, the correct answer is:
- **Option D: Group 0**

### Final Answer:
The group called the buffer group of the periodic table is **Group 0** (or Group 18), which consists of the noble gases.

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