Name two elements whose atomic weights were corrected on the basis of their positions in Mendeleev's periodic table.

Explanation

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks for two elements whose atomic weights were adjusted based on their positions in Mendeleev's periodic table.

2. **Recall Mendeleev's Periodic Table**: Mendeleev arranged the elements according to their atomic weights and noticed discrepancies in the order of elements. He made corrections to the atomic weights of certain elements to maintain the correct order.

3. **Identify the Elements**: The two elements that had their atomic weights corrected are:
- **Gold (Au)**: Initially, its atomic weight was incorrectly placed, but Mendeleev corrected it to fit its proper position in the periodic table.
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