Nuclear Engineering Question: __________ have the same mass number, but different nuclear charge. A. Isotopes B. Isobars C. Isotones D. none of these Nuclear Engineering Interview QuestionAnswer: Option B Previous QuestionNext QuestionThe half life period of a radioactive element depends on its A. temperature B. pressure C. amount D. none of theseWhich one is radioactive in nature? A. Helium B. Deuterium C. Heavy hydrogen D. Tritium