Question

what is Atomic mass unit(A.M.U) ? ■□■□■□■□■​

Answer 1

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ʀᴇǫᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ-:

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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Answer 2

Answer:

Atomic mass, the quantity of matter contained in an atom of an element. It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, 1.992646547 × 10−23 gram, which is assigned an atomic mass of 12 units. In this scale 1 atomic mass unit (amu) corresponds to 1.660539040 × 10−24 gram.