Convert each of the potentials. the silver–silver chloride and calomel reference electrodes are saturated with kcl , resulting in cell potentials of +0.197 v and +0.241 v with respect to the standard hydrogen electrode (s. h. respectively. if an electrode has a potential of 0.556 v with respect to a standard hydrogen electrode (s. h. what is the potential with respect to a silver–silver chloride electrode?

56 moles of   lieter in chemistry

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.