Question

Define the atomic mass unit ​

Answer 1

Answer:

a unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12.

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$a unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12.$

Answer 2

Answer:

the atomic mass unit of an element is the number of times one atom of the element is heavier than 1/12 times of the mass of an carbon