Chemistry · Periodic Classification of Elements
Which of the following statements about Mendeleev's periodic table is NOT correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Hydrogen was assigned a fixed, definitive position in Mendeleev's periodic table.✓
- 2No specific position was assigned to isotopes in Mendeleev's periodic table.
- 3Like alkali metals, hydrogen reacts with halogens, oxygen, and sulphur to form compounds having similar formulae.
- 4Noble gases were not discovered at that time.
Correct answer
Hydrogen was assigned a fixed, definitive position in Mendeleev's periodic table.
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