The electron density in the xy-plane in `3d_(x^2-y^2)` orbital is zero.

Explanation

To determine whether the statement "The electron density in the xy-plane in the `3d_(x^2-y^2)` orbital is zero" is true or false, we can analyze the characteristics of the `3d_(x^2-y^2)` orbital.

### Step-by-Step Solution:

1. **Understanding the Orbital**:
The `3d_(x^2-y^2)` orbital is one of the five d-orbitals. It has a specific shape that is characterized by having lobes along the x and y axes.

2. **Visualizing the Orbital**:
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