Define atomic mass unit.

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3. ATOMS AND MOLECULES

easy

Define the atomic mass unit.

Option A

Option B

Option C

Option D

Solution

One atomic mass unit (amu) is a mass unit equal to exactly onetwelfth $(1/12^{th})$ the mass of one atom of carbon $-12$.

The relative atomic masses of all the elements have been found with respect to an atom of carbon $-12.$

Standard 9

Science

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