M in 99Tcm stands for?: (A) Micro, (B) Mega, (C) Metastable, (D) Metastatic
Answer is C. ANSWER: (C) MetastableREF: Nuclear Physics: Principles And Applications by Lilley Page 20"In 'Teethe superscript M denotes that the technetium 99 is not in its ground state but a long lived metastable excited state"