Q.

This scientist gave the law- ‘Properties of elements are a periodic function of their atomic number.’ This property of the fundamental importance of atomic number was discovered by-

A. Johann Wolfgang Döbereiner
B. John Newlands
C. Dmitri lvanovich Mendeléev
D. Henry Moseley
Answer» D. Henry Moseley
Explanation: In 1913, Henry Moseley showed that the atomic number of an element is a more fundamental property than its atomic mass as described below.
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