Question

define atomic mass unit​

Answer 1

Answer:

The mass of one atom of C- 12 isotope is called atomic mass unit

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Answer 2

Answer:

Atomic mass unit is the unit of mass for expressing masses of atoms or molecules.

Explanation:

Atomic mass unit (a.m.u) :

The quantity 1/12 th mass of an atom of C12 is known as atomic mass unit .

One atomic mass unit (amu) is equal to 1/12 th of the mass of an atom of carbon- 12 isotope.

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Example-

Atomic mass of hydrogen is 1 amu (approx).

Atomic mass of oxygen is 16 amu (approx).