Nuclear radiation is emitted by those elements whose A. molecules are stableB. molecules are unstableC. nuclei are stableD. nuclei are unstable Show Answer…...Hide AnswerCorrect Answer: D. nuclei are unstable 💾 Save the Page as PDF: 📥𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐍𝐨𝐰! Related Read more articles Previous PostRoentgen discovered X-rays and Mosley found that the frequency of the X-rays emitted from anode increases with the Next Poste/m ratio of the canal rays is less than that of cathode rays. The reason is If the aforementioned Answer is Wrong. Leave a Reply with an authentic source.Cancel reply