what is isobars in chemistry

Isobars are groups of elements that have different atomic numbers but the same mass number. They are atoms (nuclides) of different chemical elements that have the same number of nucleons. Isobars differ in atomic number (or number of protons) but have the same mass number. Their chemical property is different because there is a difference in the number of electrons. An additional number of neutrons compensates for the difference in the number of nucleons. Isobars are elements that differ in chemical properties but have the same physical property. For example, iron and nickel are two isotopes and isobars that have the same mass number, which is 58, whereas the atomic number of iron is 26, and the atomic number of nickel is 28.