A bonds are formed by the ______ overlap of ______ orbitals:

Explanation

To answer the question, "A bonds are formed by the ______ overlap of ______ orbitals," we need to fill in the blanks with the correct terms.

### Step-by-Step Solution:

1. **Understanding the Types of Bonds**:
- In chemistry, bonds can be classified into different types based on how they are formed. The two primary types of bonds are sigma (σ) bonds and pi (π) bonds.

2. **Identifying the Overlap Type**:
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