Answer:
[tex]1 \times { 10}^{ - 9} m[/tex]
Step-by-step explanation:
It can be written in scientific notation as [tex]1 \times { 10}^{ - 9} m[/tex],
a) 1 nm = 0. 000 000 001 m
b) 1 nm = 1×10⁻⁹ m
