If `I_(1)` is the first ionisation potiential `I_(2)` is the second ionsation potential `I_(3)` is the thirs ionsiation potential and `I_(4)` is the fourth ionisation potential of an element then which of the following has the laest value?

Options

A. `I_(1)`
B. `I_(2)`
C. `I_(3)`
D. `I_(4)`

Explanation

To determine which of the ionization potentials \( I_1, I_2, I_3, \) or \( I_4 \) has the least value, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Ionization Potential**:
- Ionization potential (or ionization energy) is the amount of energy required to remove an electron from an isolated gaseous atom.

2. **Identify the Sequence of Ionization Potentials**:
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