Peasse mega ultra ! which of the following describes. an impact of the specific heat of water on the planet and the life forms that exist on it? a. places near the sea show high temperature variation. b. inland cities have moderate temperature throughout the year c. marine life experiences sudden spikes and drops in temperature. d. sweat requires alot

elements make up everything, and they combine to make compounds.

the answer is c

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.