Question

1 amu (atomic mass unit) is equal to

• A.
• B.
• C. 12g of carbon atoms
• D. 16g of oxygen atoms

Answer 1

The correct option is B

Carbon-12 isotope is used as the standard reference for measuring atomic masses. 1 amu (amuatomic mass unit) is a mass unit equal to one-twelfth $(\frac{1}{12}{)}^{th}$ the mass of carbon - 12 atom.