Which is not the name of scientist

Options

A. Pauli
B. Aufbau
C. Hund
D. Planck

Answer

To solve the question "Which is not the name of a scientist?" we need to analyze the options provided and identify which one does not correspond to a recognized scientist in the field of chemistry or physics.

### Step-by-Step Solution:

1. **Identify the Options**: First, we need to know the options provided in the question. They typically include names of scientists and one name that is not.

2. **Evaluate Each Option**:
- **Wolfgang Pauli**: He is a well-known physicist who formulated the Pauli Exclusion Principle, which states that no two electrons can occupy the same quantum state simultaneously.
- **Bohr**: Referring to Niels Bohr, he is known for the Bohr model of the atom and the Aufbau Principle, which describes the order in which electrons fill atomic orbitals.
- **Friedrich Hund**: He is recognized for Hund's Rule, which states that electrons will fill degenerate orbitals singly before pairing up.
- **Max Planck**: He is a prominent physicist known for his work in quantum theory and Planck's constant.

3. **Identify the Non-Scientist Name**:
- The question asks for the name that is not associated with a scientist. Based on the analysis, if one of the options is something like "APOV" or any other term that does not correspond to a recognized scientist, that would be the answer.

4. **Conclusion**: After evaluating the names, the option that does not correspond to a scientist is likely the one that is not a proper name or is incorrectly attributed to a scientific principle.

### Final Answer:
The option that is not the name of a scientist is **B, Aufbau Principle** (if it was presented as a name).

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