Question

justify or criticize "Althought the isobar have same mass number their masses are not exactlh​

Answer 1

Answer:

Although Isobars have the same mass number, their masses are not exactly the same. This is because the mass of a neutron is not exactly the same as that of a proton, a neutron is slightly heavier. There are mass spectrometers sensitive enough to measure a hundredth of a mass of the neutron.