Question

Define atomic mass funit.​

Answer 1

Answer:

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Explanation:

An atomic mass unit is defined as a mass equal to one twelfth the mass of an atom of carbon-12. The mass of any isotope of any element is expressed in relation to the carbon-12 standard. For example, one atom of helium-4 has a mass of 4.0026 amu.

Answer 2

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.

Explanation:

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