Scelta multipla
Which of the following is the SI base unit for time?
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1. Intro to General Chemistry
SI Units
Scelta multipla
Which of the following SI units represents the smallest quantity?
A
centimeter (cm)
B
millimeter (mm)
C
micrometer (µm)
D
nanometer (nm)
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Understand that the problem is asking which unit represents the smallest length among the given options.
Recall the metric prefixes and their corresponding powers of ten: centimeter (cm) = 10^{-2} meters, millimeter (mm) = 10^{-3} meters, micrometer (\(\mu\) m) = 10^{-6} meters, and nanometer (nm) = 10^{-9} meters.
Compare the powers of ten for each unit to determine which is the smallest: the smaller the exponent, the smaller the unit.
Identify that nanometer (nm), being 10^{-9} meters, is smaller than micrometer (10^{-6} m), millimeter (10^{-3} m), and centimeter (10^{-2} m).
Conclude that nanometer (nm) represents the smallest quantity among the listed units.
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