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Periodic Classification of Elements — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements1 Mark
MCQ
Modern periodic law was proposed by :
  • A
    Dmitri Mendeleev
  • ✓
    Henry Moseley
  • C
    J.A.R. Newlands
  • D
    Niels Bohr
✓

Answer

Correct option: B.
Henry Moseley
Modern periodic law was proposed by Henry Moseley in $1913.$
According to the modern periodic law, the properties of the elements and their compounds are a periodic function of their atomic numbers.

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