Maggie is a member of her school’s environmental club and is interested in recycling. she asks the question, “how does exposure to the environment affect recyclable plastics? ” what best describes why and how maggie should change her question to make it a better scientific question?

Answer : Maggie can change the question "How can recycling the plastic lower its exposure effect on environment" which will also include the scientific question on recycling procedures for plastics and what will be the effect of it on environment compared to normal plastics.

The environmental effects can be studied and related with the recyclable plastics and will promote the usage of such plastics.

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.