Why is it impossible for an atom to have an atomic number of 110.5?

Question

atoms of elements all have the same atomic number

atoms with atomic numbers greater than 100 are unstable

atoms always split electrons

atoms only have whole numbers of protons

Answer 1

Therefore, it is impossible for an atom to have an atomic number of 110.5 because atomic numbers are always whole numbers representing the number of protons in the nucleus of an atom.