2. Four charged particles are placed so that each particle is at the corner of a square. The sides of the square are 17cm. The charge at the upper left corner is +3°C, the charge at the
upper right corner is -6uc, the charge at the lower left corner is -2.4°C, and the charge on
the lower right corner is -9uc.
What is the net electric force on the +3C charge?

am i too late?

explanation:

if you mean hydrogen and oxygen then water is the product

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.