Explain with examples
Atomic number
Give any two uses of isotopes.

Explanation

### Step-by-Step Text Solution

**Step 1: Define Atomic Number**
The atomic number of an element is defined as the number of protons present in the nucleus of an atom of that element. It is denoted by the symbol 'Z'.

**Example:**
For example, carbon has an atomic number of 6, which means it has 6 protons in its nucleus.

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