The `+1` oxidation state is more stable than `+3` oxidation state for thallium. Give reason.

Explanation

To explain why the +1 oxidation state is more stable than the +3 oxidation state for thallium, we can follow these steps:

### Step 1: Understand the Electronic Configuration
Thallium (Tl) has the electronic configuration of [Xe] 6s² 6p¹. This means that thallium has two electrons in the 6s subshell and one electron in the 6p subshell.

### Step 2: Identify Possible Oxidation States
Thallium can exhibit oxidation states of +1 and +3. The +1 oxidation state occurs when thallium loses one electron from the 6p subshell, while the +3 oxidation state occurs when it loses both 6s electrons and the 6p electron.

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