MCQ
Atomic weight of which set of elements were corrected by Mendeleev?
- A$\ce{Li, Na, K}$
- ✓$\ce{U, Be, In}$
- C$\ce{Tc, Sc, Al}$
- DNone of the these
✓
Answer
Correct option: B.
$\ce{U, Be, In}$
Mendeleev corrected atomic weights of Uranium, Beryllium, and Indium $\ce{(U, Be, In)}$ based on their positions in the periodic table. Along with that he also corrected the atomic weights of Gold $\ce{(Au)}$ and Platinum $\ce{(Pt).}$
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