Question

Name the scientist who first oi all showed that atomic number of an element is a more fundamental property than its atomic mass.

Answer 1

Moseley was the scientist. He gave the modern periodic law in which he stated that the physical and chemical properties of an element are the periodic functions of its atomic number. Mendeleev constructed the periodic table based on atomic mass.

Answer 2

Moseley was the scientist who first oi all showed that atomic number of an element is a more fundamental property than its atomic mass.