Fission of uranium-235 products energy and a. isotopes of smaller elements b. isotopes of larger elements c. lighter isotopes of uranium d. heavier isotopes of uranium

A

Explanation:

During fission, heavier unstable atoms are split into lighter and more stable atoms with the release of energy. Fission of Uranium-235 produces Barium and Krypton (which are lighter and more stable atoms) and neutrons. Barium has an atomic mass of 141 while that of Krypton is 92.

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.