Which amongst the following are called Magic numbers ?

Options

A. 2,8,8,18
B. 2,8,8,32
C. 2,8,18,32
D. None of these

Answer

To solve the question "Which amongst the following are called Magic numbers?", we need to understand what magic numbers are in the context of the periodic table. Here’s a step-by-step solution:

### Step 1: Understand the Concept of Magic Numbers
Magic numbers refer to specific numbers of protons or neutrons in the nucleus of an atom that result in a more stable configuration. In the context of the periodic table, magic numbers are associated with the arrangement of elements based on their atomic number.

**Hint:** Think about how elements are arranged in the periodic table and how certain numbers represent stability.

### Step 2: Identify the Pattern of Magic Numbers
In the modern periodic table, elements are arranged in increasing order of atomic number. The properties of elements tend to repeat after certain intervals. These intervals are recognized as magic numbers.

**Hint:** Look for the intervals at which the properties of elements repeat in the periodic table.

### Step 3: List the Magic Numbers
The magic numbers in the periodic table are:
- 2
- 8
- 18
- 32

These numbers indicate the number of electrons that can occupy the electron shells around the nucleus of an atom before the properties of elements begin to repeat.

**Hint:** Remember that these numbers are not just random; they signify the completion of electron shells.

### Step 4: Conclusion
Based on the understanding from the previous steps, the magic numbers are 2, 8, 18, and 32.

**Final Answer:** The magic numbers are 2, 8, 18, and 32.