Explain with examples
Isobars
Give any two uses of isotopes.

Explanation

### Step-by-Step Text Solution

**Step 1: Define Isobars**
Isobars are atoms of different elements that have the same mass number but different atomic numbers. The mass number is the total number of protons and neutrons in the nucleus, while the atomic number is the number of protons in the nucleus.

**Step 2: Provide Examples of Isobars**
For example, consider Argon and Calcium:
- Argon (Ar) has an atomic number of 18 and a mass number of 40.
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