1 Drag each tile to the correct location.
Based on its chemical properties, identify the position of each chemical family on the periodic table.
alkali metals
alkaline earth
metals
halogens
noble gases
transition
metals

jjj89t'ji; it hink the answer is your mom is not si

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.

yes the answer is total mass in unchanged   : )