Final answer:
Lothar Meyer's and Mendeleev's periodic tables have several similarities, including the arrangement by atomic mass, the prediction of unknown elements, and their influence on the development of the periodic table.
Step-by-step explanation:
There are several similarities between Lothar Meyer's and Mendeleev's periodic tables:
- Arrangement by atomic mass: Both Meyer and Mendeleev organized their periodic tables based on increasing atomic mass of the elements.
- Prediction of unknown elements: Mendeleev, in particular, used his periodic table to predict the existence of elements with properties similar to aluminum and silicon, which were yet unknown at the time.
- Influence on the development of the periodic table: Both Meyer and Mendeleev made significant contributions to the development of the periodic table and its understanding.