Name the metal which floats on water without any apparent reaction with it.

Explanation

To solve the question, "Name the metal which floats on water without any apparent reaction with it," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Properties of Metals**:
- Metals can have varying densities. Some metals are less dense than water, allowing them to float.

2. **Identify Alkali Metals**:
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