NEETChemistrySome Basic Concepts of Chemistry
What fraction of the mass of one carbon-12 (12 C) atom is defined as one atomic mass unit (amu) in the present system?
Options
- AOne-tenth
- BOne-twelfth
- COne-half
- DOne-quarter
Correct answer
B. One-twelfth
Step-by-step solution
One atomic mass unit (amu) exactly equal to one-twelfth of the mass of one carbon-12 (12