Why is synthesis of transactinides difficult ?

Explanation

### Step-by-Step Solution:

1. **Definition of Transactinides**:
- Transactinides are elements that have atomic numbers greater than 103. They are positioned in the periodic table immediately after the actinides, starting from element 104 (Rutherfordium) and beyond.

2. **Characteristics of Transactinides**:
- They are classified as super heavy elements due to their high atomic numbers.
- The first transactinide element is Rutherfordium (Z=104), which follows Laurencium (Z=103).
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