Question

The total number of nucleons in the atoms of calcium and argon is 40 and the
atomic numbers of calcium and argon are 20 and 18 respectively. Name the pair
of these two elements and also find out the number of neutrons present in the
nucleus of argon atom.​

Answer 1

Answer:

These two elements are isobars with same mass number but different atomic number. these 2 elements are isobars with same mass number but different atomic number.so the answer is 22.

Answer 2

Answer:

pls mark as brilliant

Explanation:

These two elements are isobars with same mass number but different atomic number. these 2 elements are isobars with same mass number but different atomic number.so the answer is 22.