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

1)Moseley's work on X-ray spectra

2)Bragg's work on X-ray deffraction

3)Mulliken's oil drop experiment

4)Discovery of X-ray by Roentgen


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    Moseley's work on X-ray spectra

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  • Exam: Periodic Table QUESTIONS





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