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Define Atomic Mass Unit. What is Its Symbol ? - Science

Short Note

Define atomic mass unit. What is its symbol ?

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Solution

Atomic mass unit can be defined as one twelfth (1/12) of the mass of an unbound atom of carbon-12. The atomic masses of all the elements are determined by comparing the mass of their atom with that of the carbon-12 atom.

Atomic mass unit = 1/12 the mass of a carbon-12 atom

(b) The symbol of atomic mass unit is “u”.

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APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 3 Atoms and Molecules
Long Answers | Q 56.1 | Page 130
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