Which of the halogens has highest value of bond dissociation energy?

Explanation

To determine which halogen has the highest bond dissociation energy, we will analyze the bond dissociation energies of the diatomic molecules formed by the halogens: F₂, Cl₂, Br₂, and I₂.

### Step-by-Step Solution:

1. **Identify the Halogens**: The halogens are the elements in Group 17 of the periodic table, which include fluorine (F), chlorine (Cl), bromine (Br), and iodine (I).

2. **Understand Bond Dissociation Energy (BDE)**: Bond dissociation energy is the energy required to break a bond in a molecule. For diatomic molecules like F₂, Cl₂, Br₂, and I₂, we need to compare the BDE of these bonds.

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