What is 1 Dalton?
A. a unified mass unit, 1.360539040(20)×10?27kg
B. a unified mass unit, 1.640539040(20)×10?27kg
C. a unified mass unit, 1.660539040(20)×10?27kg
D. a unified mass unit, 1.660539040(20)×10?27kg
Answer:A
What is 1 Dalton?
A. a unified mass unit, 1.360539040(20)×10?27kg B. a unified mass unit, 1.640539040(20)×10?27kg C. a unified mass unit, 1.660539040(20)×10?27kg D. a unified mass unit, 1.660539040(20)×10?27kg