Which statements accurately describe satellite motion? Check all that apply. Gravity is the only force acting on a satellite. Inertia is the only cause of a satellite’s circular motion. Air resistance prevents satellites from staying in orbit for very long. Circular orbits result from the interaction between gravity and inertia. Gravity provides the centripetal force for satellites. Satellites are in free fall around Earth or other central objects.

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.