True. Mendeleev's arrangement of elements in the periodic table was indeed based on the observations and experiments of his predecessors, particularly focusing on the atomic masses and properties of elements. He organized the elements in a way that highlighted their periodic relationships, which was a significant advancement in understanding chemical properties.
Mendeleev's arrangement of elements in the periodic table was based on the observations and experiments of his predecessors who studied the mass and properties of elements.
True
False
1 answer