An isobar of { }_{20} Ca^{40} is | vedclass

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Question

(A) Isobars are atoms of different elements that have the same mass number but different atomic numbers.For ${ }_{20} Ca^{40}$,the mass number is $40$

Vedclass · Accepted Answer

${ }_{18} Ar^{40}$

Vedclass · Answer

(A) Isobars are atoms of different elements that have the same mass number but different atomic numbers.For ${ }_{20} Ca^{40}$,the mass number is $40$ and the atomic number is $20$.Among the options,${ }_{18} Ar^{40}$ has the same mass number $(40)$ but a different atomic number $(18)$.Therefore,${ }_{18} Ar^{40}$ is an isobar of ${ }_{20} Ca^{40}$.

An isobar of ${ }_{20} Ca^{40}$ is

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