Isobars are atoms that have same atomic mass but different atomic number. They have different atomic numbers because they have different numbers of protons. They have the same atomic mass because they have just enough neutrons to make the same total of nucleons. Isobars occur at different places in the Periodic Table.
The Holocaust (also called Ha-Shoah in Hebrew) refers to the period from January 30, 1933 - when Adolf Hitler became chancellor of Germany - to May 8, 1945, when the war in Europe officially ended.
The Holocaust was the Nazis' assault on the Jews between 1933 and 1945. It culminated in what the Nazis called the 'Final Solution of the Jewish Question in Europe', in which six million Jews were murdered. The Jews figured in Nazi ideology as the arch-enemy of the Aryan race...