Question

The radius of a potassium atom is 0.227 nanometer (nm). what is this radius in centimeters (cm)?

a. 2.27 Ã 10â8 cm

b. 2.27 Ã 106 cm

c. 2.27 Ã 10â10 cm

d. 2.27 Ã 10â11 cm check answer

Answer 1

A nanometer is equivalent to 10^-9 meter. While a centimetre is equivalent to 10^-2 meter. Therefore the conversion factors are:

1 nanometer = 10^-9 meter

1 centimeter = 10^-2 meter

So,

0.227 nanometer * (10^-9 meter / 1 nanometer) * (1 centimeter / 10^-2 meter) = 2.27 x 10^-8 centimeter

Answer:

a