Name the parameters that characterized a unit cell.

Explanation

To characterize a unit cell, we need to identify the parameters that define its structure. Here’s a step-by-step solution:

### Step 1: Identify the Dimensions of the Unit Cell
The first set of parameters that characterize a unit cell are its dimensions along the three edges. These edges are typically labeled as:
- **A**: Length of edge along the x-axis
- **B**: Length of edge along the y-axis
- **C**: Length of edge along the z-axis

...