Question

Dimensions of subatomic particles are often described in nanometers. A nanometer is one-billionth of a meter. Write a nanometer in both standard form and scientific notation.

a) Standard form: 0.000000001 meters, Scientific notation: 1 x 10^-9 meters
b) Standard form: 0.00000001 meters, Scientific notation: 1 x 10^-8 meters
c) Standard form: 0.0000001 meters, Scientific notation: 1 x 10^-7 meters
d) Standard form: 0.000001 meters, Scientific notation: 1 x 10^-6 meters

Answer 1

A nanometer, used to measure subatomic particles, is 0.000000001 meters in standard form or 1 x 10^-9 meters in scientific notation.

Step-by-step explanation:

A nanometer is one-billionth of a meter, which is 0.000000001 meters in standard form. In scientific notation, this is expressed as 1 x 10-9 meters. Therefore, the correct answer to the question is (a) Standard form: 0.000000001 meters, Scientific notation: 1 x 10-9 meters. Nanometers are often used in the context of subatomic particles, with the angstrom unit (Å) equivalently used to represent atomic-scale dimensions, which is 1Å = 10-10 m.