Dmitri Mendeleev's Periodic Law

Dmitri Mendeleev's Periodic Law states that the properties of elements are a periodic function of their atomic weights. This means that when elements are arranged in order of increasing atomic weight, their chemical and physical properties show a regular pattern or repetition. Mendeleev used this insight to create the first Periodic Table, organizing elements into groups with similar characteristics. This foundational concept in chemistry allows scientists to predict the properties of undiscovered elements and better understand the relationships between different elements.