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One atomic mass unit is equal to about how many kilograms?
A1.66 × 10⁻¹⁹ kg
B1.99 × 10⁻²⁶ kg
C9.11 × 10⁻³¹ kg
D1.66 × 10⁻²⁷ kg
Answer & Solution
Correct answer: D. 1.66 × 10⁻²⁷ kg
Dividing the carbon-12 atom mass of 1.9926 × 10⁻²⁶ kg by 12 gives 1.66 × 10⁻²⁷ kg.
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