The mass of one amu is approximately:

1 g

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0.5 g

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1.67 \times 10^{- 24} g

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3.2 \times 10^{- 24} g

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Solution

The correct option is A $1.67 \times 10^{- 24} g$
One amu (or atomic mass unit) is approximately equal to the mass of one nucleon (either proton or neutron). In general, the average mass of one proton and one neutron is termed as the amu and this is approximately equal to $1.67 \times 10^{- 24}$ g.
Hence, the correct option is $(C)$ .

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