Which of the following statement is//are correct ?

Options

A. For all value of n the p orbital have the same shape but the overall size increases as n increases for a given atom
B. The fact then there is a particular direction along which each p orbit has maximum electron density plays an important rule in determining molecular grometries
C. The charge cloud of a single electron in `2 p_(x)` atomic orbitals consists of two lobes of electron density.
D. None is correct.

Answer

To determine which of the statements regarding atomic orbitals are correct, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **First Statement**: "For all the values of n and p, orbitals have the same shape but the overall size increases as n increases for a given atom."
- **Analysis**: The shape of the orbitals (for example, p orbitals) does not change with increasing principal quantum number (n). However, the size of the orbitals does increase as n increases. Therefore, this statement is **correct**.

2. **Second Statement**: "The fact that there is a particular direction along which the p orbital has maximum electron density plays an important role in determining the molecular geometries."
- **Analysis**: This statement is also **correct**. The orientation of p orbitals (px, py, pz) affects how atoms bond and the overall geometry of molecules. The maximum electron density in these orbitals indeed influences molecular shapes.

3. **Third Statement**: "The charge cloud of a single electron in 2px atomic orbital consists of two lobes of electron density."
- **Analysis**: This statement is **correct**. The 2px orbital has two lobes, and the probability of finding an electron is higher in these lobes, which is consistent with the description of p orbitals.

### Conclusion:
- All three statements are correct.

### Final Answer:
- **All statements are correct.**

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