To determine the number of protons in an atom, you need to look at the atomic number, which is represented as the subscript (the lower number) in the element's symbol.
For the given atom [tex]\({ }_{88}^{220} \text{Ra}\)[/tex]:
1. Identify the atomic number. The atomic number is the subscript value. In this case, it is 88.
2. The atomic number tells us the number of protons in the atom.
Therefore, the number of protons in the atom [tex]\({ }_{88}^{220} \text{Ra}\)[/tex] is 88.
Thus, the correct answer is [tex]\( \boxed{\text{F 88}} \)[/tex].
