Why mendeleev succeeded where others failed?

Mendeleev succeeded in creating the Periodic Table because he organized elements by increasing Atomic Mass and recognized patterns in their properties, allowing him to predict the existence and characteristics of undiscovered elements. His willingness to leave gaps for unknown elements demonstrated his confidence in the periodic nature of elements, which others had overlooked. Additionally, Mendeleev's approach combined both experimental data and theoretical insights, enabling a more comprehensive understanding of elemental relationships. This innovative thinking set his work apart from that of his contemporaries.