Which gas would have the slowest rate of diffusion, assuming that all gases are at the same temperature? A. krypton (atomic mass 83.8 amu) B. argon (atomic mass 39.95 amu) C. xenon (atomic mass 131.3 amu) D. radon (atomic mass 222 amu)

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

B. a graduated substance

The answer to the question is d