Berllium shows diagonal relationship with

Options

A. `Mg`
B. `Na`
C. `Al`
D. `B`

Explanation

To determine the element that shows a diagonal relationship with beryllium, we can follow these steps:

### Step 1: Understand the Concept of Diagonal Relationship
Diagonal relationship refers to the similarity in properties between certain pairs of elements in the periodic table that are positioned diagonally to each other. This is most commonly observed between elements in the second period and those in the third period.

**Hint:** Look for elements in the same group and period to identify diagonal relationships.

### Step 2: Identify Beryllium's Position in the Periodic Table
Beryllium (Be) is located in Group 2 (alkaline earth metals) and Period 2 of the periodic table.

**Hint:** Locate beryllium on the periodic table to see which elements are in the same group and period.

### Step 3: Find the Diagonal Element
To find the diagonal element of beryllium, we look at the third period. The element that is diagonally positioned to beryllium is aluminum (Al), which is located in Group 13 and Period 3.

**Hint:** Check the elements in the third period that are diagonally aligned with beryllium.

### Step 4: Confirm Similar Properties
Beryllium and aluminum exhibit similar chemical properties, such as the formation of amphoteric oxides and their ability to form complexes. This confirms the diagonal relationship.

**Hint:** Consider the chemical behavior of both elements to understand their similarities.

### Conclusion
Beryllium shows a diagonal relationship with aluminum.

**Final Answer:** Beryllium shows diagonal relationship with Aluminum (Al).