What is the symbol for nano?

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Multiple Choice

What is the symbol for nano?

Explanation:
The main idea here is how metric prefixes are written to show scale, specifically the nano prefix. Nano means one billionth, or 10^(-9), and the symbol used with units is a lowercase n. So you form units like nanometer (nm) and nanosecond (ns) by attaching n to the unit. That single letter n is different from the symbols used for other prefixes: micro uses the Greek mu (µ) for 10^(-6), pico uses p for 10^(-12), and femto uses f for 10^(-15). Keeping n for nano helps distinguish these powers of ten across all units—e.g., 1 nm is 1×10^(-9) meters, 1 ns is 1×10^(-9) seconds.

The main idea here is how metric prefixes are written to show scale, specifically the nano prefix. Nano means one billionth, or 10^(-9), and the symbol used with units is a lowercase n. So you form units like nanometer (nm) and nanosecond (ns) by attaching n to the unit.

That single letter n is different from the symbols used for other prefixes: micro uses the Greek mu (µ) for 10^(-6), pico uses p for 10^(-12), and femto uses f for 10^(-15). Keeping n for nano helps distinguish these powers of ten across all units—e.g., 1 nm is 1×10^(-9) meters, 1 ns is 1×10^(-9) seconds.

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