State whether the given statement is true or false:
The atomic mass unit (amu) is defined as one-twelfth of the actual mass of an atom of `C^12`.

Answer

To determine whether the given statement is true or false, we can follow these steps:

### Step 1: Understand the Definition of Atomic Mass Unit (amu)
The atomic mass unit (amu) is a standard unit of mass that is used to express atomic and molecular weights.

### Step 2: Reference Isotope
The atomic mass unit is defined based on the carbon-12 isotope. Specifically, it is defined as one-twelfth (1/12) of the mass of a carbon-12 atom.

### Step 3: Analyze the Statement
The statement in question is: "The atomic mass unit (amu) is defined as one-twelfth of the actual mass of an atom of C^12."

### Step 4: Evaluate the Truth of the Statement
Since the definition of amu is indeed one-twelfth of the mass of a carbon-12 atom, the statement is correct.

### Conclusion
Therefore, the statement is **true**.

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