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Q.

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

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a

Millikan’s oil drop experiment

b

Moseley’s work on X-rays spectra

c

Bragg’s work on X-rays diffraction

d

Discovery of X-rays by Roentgen

answer is B.

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Detailed Solution

Moseley worked on X-rays spectra and stated Mosely's periodic law.

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