The elements which have different atomic number but have same mass number are called as isobars. Since they have different atomic number therefore they are placed seperatly in the periodic table but they have same mass number. For example; Iodine-131 and Xenon-131 are isobars of eachother.
The Holocaust and World War II: Timeline. January 30, 1933: President Hindenburg appoints Adolf Hitler Chancellor of Germany. March 20, 1933: SS opens the Dachau concentration camp outside of Munich. April 1, 1933: Boycott of Jewish-owned shops and businesses in Germany. April 7, 1933: Law for the Reestablishment of the Professional Civil Service.
The Holocaust. The Holocaust, also referred to as the Shoah, was a genocide in which some six million European Jews were killed by Adolf Hitler's Nazi Germany, and the World War II collaborators with the Nazis.