"The 6 properties of the elements are a periodic function of their atomic numbers.” The statement was given by?
A
N. Bohr
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B
J.W. Dobereiner
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C
D.I. Mendeleef
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D
H.G.J. Moseley
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Solution
The correct option is D
H.G.J. Moseley
Moseley's contribution the Periodic Law can be restated:
Similar properties recur periodically when elements are arranged according to increasing atomic number." Atomic numbers, not weights, determine the factor of chemical properties.