Atomic orbitals are……….centric and molecular orbitals are………… centric.

Explanation

**Step-by-Step Solution:**

1. **Understanding Atomic Orbitals**:
- Atomic orbitals are regions in an atom where there is a high probability of finding electrons. Each atomic orbital is associated with a single nucleus (the nucleus of the atom).
- Since atomic orbitals are influenced by only one nucleus, they are referred to as "monocentric."

2. **Understanding Molecular Orbitals**:
- Molecular orbitals, on the other hand, are formed when atomic orbitals from different atoms combine. They represent regions in a molecule where there is a high probability of finding electrons that are shared between two or more nuclei.
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