The two elements predicted by Mendeleev were discovered later. Explain how these elements fit Mendeleev’s predictions.
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3
Answer:
Gallium , Scandium , Germanium
Explanation:
Gallium, germanium, and scandium were all unknown in 1871, but Mendeleev left spaces for each and predicted their atomic masses and other chemical properties. Within 15 years, the “missing” elements were discovered, conforming to the basic characteristics Mendeleev had recorded.
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Explanation:
Eka-boron=scandium
Eka-aluminium=galium
Eka-silicon=germaniun
All the above elements are predicted by Mendeleev.
All the characteristics are found in those elements which were predict by him.
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