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Who classified the elements on the basis...

Who classified the elements on the basis of fundamental properties of elements like atomic mass?

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**Step-by-Step Solution:** 1. **Identify the Scientist**: The question asks about the classification of elements based on fundamental properties like atomic mass. The scientist who is known for this classification is Dmitri Mendeleev. 2. **Understanding Mendeleev's Approach**: Mendeleev arranged the elements in order of increasing atomic mass. This means he listed the elements from the lightest to the heaviest based on their atomic weights. 3. **Grouping by Properties**: Mendeleev also grouped elements that had similar properties. He placed these elements in the same horizontal row, which he referred to as a "period". ...
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