Among (the non-radioactive) halogens the element that has the lowest electron affinity is __________.

Explanation

To determine which non-radioactive halogen has the lowest electron affinity, we can follow these steps:

### Step 1: Understand Electron Affinity
Electron affinity is defined as the amount of energy released when an electron is added to a neutral atom in the gaseous state, resulting in the formation of a negative ion.

### Step 2: Identify the Non-Radioactive Halogens
The non-radioactive halogens are:
- Fluorine (F)
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