Chemistry · Periodic Classification
For which of the following sets of elements did Mendeleev leave gaps in his periodic table, and which were discovered and placed in the table later?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Sc, Ga and Mg
- 2Sc, Ga and Na
- 3Sc, Ga and Ge✓
- 4Sc, Ga and Ca
Correct answer
Sc, Ga and Ge
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