Diagonal relationship is shown by

Options

A. `B-S`
B. `Li-Mg`
C. `Mg-Ca`
D. `S-Se`

Answer

To determine which pairs of elements exhibit a diagonal relationship, we need to analyze the periodic table and the characteristics of the elements in question. Here's a step-by-step solution:

### Step 1: Understand the Concept of Diagonal Relationship
A diagonal relationship in the periodic table refers to the similarity in properties of certain pairs of elements that are positioned diagonally to each other. This typically occurs between elements in the second and third periods of the periodic table.

**Hint:** Look for elements that are one group apart and one period apart.

### Step 2: Identify the Given Pairs
The question provides four pairs of elements:
1. Boron (B) and Sulfur (S)
2. Lithium (Li) and Magnesium (Mg)
3. Magnesium (Mg) and Calcium (Ca)
4. Sulfur (S) and Disorientium (assumed to be a typo for another element, possibly Silicon (Si))

**Hint:** Write down the pairs and their positions on the periodic table.

### Step 3: Analyze Each Pair for Diagonal Relationships
- **Boron (B) and Sulfur (S)**: These elements are in different groups and periods but are not diagonally related. They are too far apart in the periodic table.

- **Lithium (Li) and Magnesium (Mg)**: Lithium is in Group 1 and Period 2, while Magnesium is in Group 2 and Period 3. They are diagonally related and show similar properties (e.g., both are metals and have some similar chemical behavior).

- **Magnesium (Mg) and Calcium (Ca)**: Both are in Group 2, but they are in consecutive periods (3 and 4). They do not exhibit a diagonal relationship.

- **Sulfur (S) and Disorientium (Si)**: Assuming Disorientium refers to Silicon (Si), these elements are in the same group but different periods. They do not show a diagonal relationship.

**Hint:** Compare the groups and periods of each pair to see if they are diagonally aligned.

### Step 4: Conclusion
From the analysis, the only pair that exhibits a diagonal relationship is:
- **Lithium (Li) and Magnesium (Mg)**

Thus, the answer is **Lithium and Magnesium**.

**Final Answer:** The diagonal relationship is shown by Lithium (Li) and Magnesium (Mg).

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