How many atoms are in the solar system?

The mass of the sun is approximately 1.99x1030 kg and the mass of a hydrogen atom, which the sun is mostly made up of, is approximately 1.67x10-27 kg.

So the simplest way to do this if you don't have a calculator is...

1.99/1.67= 1.19 and since it's division... 30 - (-27)= 57 Soooo there are approximately 1.19x1057 hydrogen atoms in the sun. Hope this helps :)

Answered by Nick