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

while ,

protium,deuterium,tritium are isotopes of hydrogen having same atomic number but different mass number


I hope it helps……

1 5 1
can u tell the relation bw evolution and classification woth example
aere bio nhi chalega chem physics h to puch !
though i will try
leme think !!!!
ek br soch le na..aa jaye to..
Argo calcium are isobars and they rest are isotope