Modern periodic table is based on atomic number of the elements. The significance of atomic number was proved by the experiment of ________

Question:Modern periodic table is based on atomic number of the elements. The significance of atomic number was proved by the experiment of ________

1.Moseleys work on X-ray spectra

2.Braggs work on X-ray diffraction

3.Mullikens oil drop experiment

4.Discovery of X-ray by Roentgen


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