1. Understand the Information:
* Sun's mass: 2 x 10^30 kg (This is the total mass, not just hydrogen)
* Hydrogen atom mass: 1.67 x 10^-27 kg
2. Calculate the Number of Hydrogen Atoms:
* Divide the Sun's mass by the mass of a hydrogen atom:
(2 x 10^30 kg) / (1.67 x 10^-27 kg/atom) = 1.2 x 10^57 atoms
Important Note:
* The Sun is not entirely made of hydrogen. It also contains helium and trace amounts of other elements.
* This calculation provides an estimate of the number of hydrogen atoms, but it's not the total number of atoms in the Sun.
Conclusion:
The Sun contains an estimated 1.2 x 10^57 hydrogen atoms.