The rule which states that no two electrons can have same value of all the four quantum number is

Options

A. Paull's exclusion princles
B. Helsenburg's uncertainly principle
C. Aufbau principle
D. de - Brogile principle

Answer

The rule which states that no two electrons can have the same value of all four quantum numbers is known as the **Pauli Exclusion Principle**.

### Step-by-Step Solution:

1. **Understanding Quantum Numbers**:
- Each electron in an atom is described by four quantum numbers:
- Principal quantum number (n)
- Azimuthal quantum number (l)
- Magnetic quantum number (m_l)
- Spin quantum number (m_s)

2. **Pauli Exclusion Principle**:
- The Pauli Exclusion Principle states that no two electrons in an atom can have the same set of all four quantum numbers. This means that if one electron has a specific set of quantum numbers, no other electron in the same atom can have that exact set.

3. **Implications of the Principle**:
- This principle is crucial for understanding the electron configuration of atoms. It explains why electrons fill up different orbitals and why they have unique quantum states.

4. **Comparison with Other Principles**:
- The **Heisenberg Uncertainty Principle** states that it is impossible to know both the exact position and momentum of an electron simultaneously.
- The **Aufbau Principle** explains the order in which electrons fill orbitals based on increasing energy levels.
- The **De Broglie Principle** relates to the wave-particle duality of matter, providing a formula to calculate the wavelength of a particle.

### Final Answer:
The correct answer is **Pauli Exclusion Principle**.

---