How is the radius of a nucleus related to its mass number ?

Explanation

To find the relationship between the radius of a nucleus (R) and its mass number (A), we can follow these steps:

### Step 1: Understand the Mass Number
The mass number (A) of a nucleus is defined as the total number of nucleons, which includes both protons and neutrons. Therefore, A = Z + N, where Z is the number of protons and N is the number of neutrons.

**Hint:** Remember that nucleons are the building blocks of the nucleus, consisting of protons and neutrons.

### Step 2: Volume of the Nucleus
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