Question

The modern basis of atomic weight is

• A. Isotope $H^{1} = 1.000$
• B. Oxygen = 16.000
• C. Isotope $O^{16} = 16.000$
• D. Isotope $C^{12} = 12.000$

Answer 1

Answer: (D)

Isotope $C^{12} = 12.000$

Answer 2

Isotope $C^{12}$ is the modern basis of atomic weight.