In cubic system how many atomic arrangements exist in nature ?

Answer

To solve the question regarding the number of atomic arrangements that exist in the cubic system, let's break it down step by step:

### Step 1: Understand the Cubic System
The cubic system is one of the seven crystal systems in crystallography. It is characterized by having three axes of equal length that intersect at right angles.

**Hint:** Remember that the cubic system is one of the seven types of crystal systems.

### Step 2: Identify Types of Unit Cells
Within the cubic system, there are specific types of unit cells that describe how atoms are arranged. The main types of cubic unit cells are:
1. **Simple Cubic (SC)**: Atoms are located only at the corners of the cube.
2. **Body-Centered Cubic (BCC)**: Atoms are located at the corners and one atom is at the center of the cube.
3. **Face-Centered Cubic (FCC)**: Atoms are located at the corners and at the centers of each face of the cube.

**Hint:** Focus on the arrangement of atoms in each type of unit cell.

### Step 3: Count the Atomic Arrangements
From the above types, we can summarize the arrangements:
- Simple Cubic (SC)
- Body-Centered Cubic (BCC)
- Face-Centered Cubic (FCC)

These are the three distinct atomic arrangements that exist in the cubic system.

**Hint:** Make sure to list all types of cubic unit cells to ensure you don’t miss any.

### Step 4: Conclusion
Thus, in the cubic system, there are **three atomic arrangements** that exist in nature: Simple Cubic, Body-Centered Cubic, and Face-Centered Cubic.

**Final Answer:** 3 atomic arrangements exist in the cubic system.