The size of colloidal particles ranges from

Options

A. `1-10 A^(@)`
B. `20 - 50 A^(@)`
C. `10 - 1000 A^(@)`
D. `1 -200 A^(@)`

Answer

To determine the size range of colloidal particles, we can follow these steps:

### Step 1: Understand the Definition of Colloidal Particles
Colloidal particles are defined as particles that are larger than molecules but smaller than bulk materials. They are typically found in a colloidal state, which is a mixture where one substance is dispersed evenly throughout another.

### Step 2: Identify the Size Range
According to the information provided, colloidal particles range from 1 nanometer (nm) to 1000 nanometers (nm).

### Step 3: Convert Nanometers to Angstroms (if necessary)
To further understand the size, we can convert nanometers to angstroms. Since 1 nm equals 10 angstroms, we can calculate:
- 1 nm = 10 angstroms
- 1000 nm = 10,000 angstroms

This means that colloidal particles range from 10 angstroms to 10,000 angstroms.

### Step 4: Conclusion
Thus, the size of colloidal particles ranges from 1 nm to 1000 nm, which is equivalent to 10 angstroms to 10,000 angstroms.

### Final Answer:
The size of colloidal particles ranges from **1 nm to 1000 nm**.

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