Question

define the atomic mass unit

Answer 1

One atomic mass unit is the unit of mass equal to one twelfth of the mass of an atom of carbon-12.

Answer 2

Atomic Mass:−

✔ Atomic mass of an element is the average relative mass of its atoms as compared with an atom of carbon -12 taken as 12.

✔ Atomic mass unit(amu) :

Today known as unified mass (u) is a mass exactly equal to 1/12 the mass of an one carbon-12 atom .

✔1amu= 1.6605056×10^-24g

In short => It is a characteristic of an atom that is a measure of its size.

✔It is also known as atomic weight.

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