Question

The radius of a hydrogen atom is about 0.37 Å, and the average radius of the earth’s orbit around the sun is about 1.5 x 108 km. Find the ratio of the average radius of the earth’s orbit to the radius of the hydrogen atom

Answer 1

your answer is c

Step-by-step explanation:

Answer 2

`Ratio = (radius of earth orbit)/(radius of hydrogen atom)`

radius of earth orbit = 1.5 x 10^8 km = 1.5 x 10^11 m

radius of hydrogen atom = 0.37 A = 0.37 x 10^10 m

The trick is to make their units same. We changed it to metres.

Now, Ratio =
`\frac{1.5 * 10^(11)} {0.37 * 10^(10) }`

Ratio = 40.5