What are the characteristics that set Mendeleev apart from other scientists studying periodicity at the same time

Innovative Approach: Unlike his contemporaries, Mendeleev took an innovative approach to the classification of elements. He arranged them based on their atomic weight and noticed a pattern, which led to the creation of the Periodic Table.

Prediction of New Elements: Mendeleev's Periodic Table had gaps which he predicted would be filled by elements yet to be discovered. He even predicted the properties of these undiscovered elements. This was a unique characteristic that set him apart from other scientists of his time.

Flexibility in His Theory: Mendeleev was not rigid about the order of atomic weights. When he found that certain elements fit better into the pattern of the Periodic Table when they were placed out of order, he did not hesitate to do so. This showed his flexibility and commitment to creating a useful and accurate tool, rather than sticking strictly to the rules.

Recognition of Periodicity: While other scientists were also studying periodicity, it was Mendeleev