Calculate the percent covalent character of a chemical bond between bromine and potassium.
37 percent
67 percent
63 percent
33 percent
calculate the percent ionic character of a chemical bond between magnesium and nitrogen.
49 percent
47 percent
55 percent
51 percent
63 percent
33 percent

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.