The answer to the question of Igor's middle name is Yevgenyevich. Igor's full name is Igor Yevgenyevich Tamm, where Yevgenyevich serves as his patronymic name, a common naming convention in Slavic cultures. Patronymic names are derived from the father's first name and indicate a person's lineage and family relations.
Unraveling the Genius of Igor Tamm: A Quiz on the Life and Work of the Soviet Physicist