Q. Which of the following elements has the lowest melting point?
Answer: Radon
Notes: Among the given elements, Radon has the lowest melting point of –71° Celsius. The melting point of other elements are as follows: Sodium: 98° C; Tin: 232° C; Radium: 700° C.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 83 in Chemistry-3-Elements in above course in App.