4.) How do you determine the
mass number of an atom?

the mass number or mass number is the sum of the number of protons and the number of neutrons in the nucleus of an atom. It is symbolized by the letter A (the use of this letter comes from the German Atomgewicht, which means atomic weight, although they are different concepts that should not be confused).

answer:

logistically speaking probably only a hand but if u dont squeeze ur buttcheeks then 2 full grown raccoons.

Explanation:

raccoons are deflectable