Besides gallium, which other elements have since been discovered that were left by Mendeléev in his Periodic Table? (any two)

Explanation

To answer the question about which elements were discovered after Mendeleev's time and were not included in his original Periodic Table, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Context**: Understand that Mendeleev created the first Periodic Table based on the properties of elements known at his time. However, he predicted the existence of some elements that had not yet been discovered.

2. **Recognize Gallium**: Acknowledge that Gallium (Ga) is one of the elements that was discovered after Mendeleev's Periodic Table was published. It was discovered in 1875 by Paul Émile Lecoq de Boisbaudran.

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