Question 5 of 10 Which statement best describes the relationship between self-discipline and
health?
A. Self-discipline damages people's health by letting them act on
their impulses.
B. Self-discipline allows people to take risks without having health
consequences.
C. Self-discipline helps people avoid risk behaviors that can damage
their health
D. Self-discipline improves people's health by making them delay
gratification
SUBMIT

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.