Nuclear Engineering Question: The half life period of a radioactive element depends on its A. temperature B. pressure C. amount D. none of these Nuclear Engineering Interview QuestionAnswer: Option D Previous QuestionNext QuestionGraphite is used in nuclear reactor as A. insulation lining of the reactor. B. fuel. C. lubricant. D. retarder of neutron velocity.__________ have the same mass number, but different nuclear charge. A. Isotopes B. Isobars C. Isotones D. none of these