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Periodic Classification of Elements — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements3 Marks
Question
State any three limitations of Mendeleev’s classification of elements.
✓

Answer

Limitations of Mendeleevs classification of elements:
  1. The position of isotopes could not be explained.
  2. Wrong order of atomic masses of some elements could not be explained.
  3. A correct position could not be assigned to Hydrogen in the periodic table.

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