Question

assertion calcium and argon are isobars reason calcium and argon have the same mass numbers​

Answer 1

Answer:

Both Argon and Calcium are isobars and the reason being that they are having same atomic mass of 40 and their atomic number is different i.e. 18 and 20 respectively.

Explanation:

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Answer 2

Answer:

both assertion and reason are correct and R is the correct explanation to A

Explanation:

calcium and argon are isobars because they have different atomic number and same mass number (40)