Question

One atomic mass unit (amu) is equal to

(a) 16 x 10^-27 kg 

(b) 1.6 x 10^-27 kg 

(c) 0.16 x 10²⁷ kg 

(d) 1.6 x 10²⁷ kg

Answer 1

(a) 1.6 x 10^-27 kg 

One atomic mass unit is equal to 1.66 x 10⁻²⁷ kg. It is equal to 1/12th of the mass of an atom carbon-12. It is abbreviated as amu.