EXPLAIN YOUR THINKING/WORK Cu + 2 AgNO -> Cu(NO3)2 + 2 AG
14 grams of copper are added to the solution containing 26 grams of Silver nitrate causing a reaction to occur

Find Which of the reactants is the limiting reagent and What is the maximum amount of each product that can be formed

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.