Arrange the elements in each of the following groups in increasing order of the most positive electron affinity.
F,Cl,Br,I

Explanation

To arrange the elements F (Fluorine), Cl (Chlorine), Br (Bromine), and I (Iodine) in increasing order of their most positive electron affinity, we need to consider a few key concepts regarding electron affinity and the properties of these halogens.

### Step-by-Step Solution:

1. **Understanding Electron Affinity**:
- Electron affinity is the energy change when an electron is added to a neutral atom in the gas phase. A more positive electron affinity indicates a greater tendency to gain an electron.

2. **Identifying the Group**:
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