Question

What are isobars?

Updated on November 11, 2025 | By Learnzy Admin | 👁️ Views: 16 students

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Solution

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Isobars are atoms of different elements that have thesame mass number but different atomic numbers.

This means they have the same total number of protons and neutrons combined, but the number of protons in each atom is different.
Example:
⁴⁰Ar (Argon) and ⁴⁰Ca (Calcium) are isobars because both have a mass number of 40, but their atomic numbers are 18 and 20 respectively.

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