Why is it impossible for an element to have an atomic number of 110.5? (1 point) A_ Exactly half of the isotopes would need an atomic number of 110, and half would need an atomic number of 111, which is very unlikely.

B_ Atoms of an element all have the same whole number of protons and neutrons.

C_ Atoms with atomic numbers greater than 100 are unstable.

D_ Atoms of an element all have the same whole number of protons.