Arrange with explanation the following elements in the order of increasing ionisation energy.
X(Z = 4) , Y(Z = 5), D(Z= 6), E(Z= 11)

Explanation

To arrange the elements X (Z = 4), Y (Z = 5), D (Z = 6), and E (Z = 11) in the order of increasing ionization energy, we will first identify the elements based on their atomic numbers and then analyze their electronic configurations.

### Step 1: Identify the Elements
- **X (Z = 4)**: Beryllium (Be)
- **Y (Z = 5)**: Boron (B)
- **D (Z = 6)**: Carbon (C)
- **E (Z = 11)**: Sodium (Na)

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