Earth and Jupiter are shown next to each other. Earth is much smaller than Jupiter. Why is Jupiter so much larger than Earth? Check all that apply. 1. Inner planets were created at higher velocities. 2. Outer planets have less gravity than inner ones. 3. Outer planets attracted helium, hydrogen, and other gasses. 4. Inner planets formed where temperatures were cooler. 5. Gases escaped from inner planets and not from outer ones.

answerto predict;

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.