Why is it most unlikely for a scientist to have discoverd a new element between nitrogen and oxygen?
It’s not only unlikely, but impossible. There can be no element between nitrogen and oxygen, because each element has a positive integer (i.e., a number with no decimals: 1, 2, 25, etc.) as a number of protons. Nitrogen has 7, oxygen has 8. There can’t be an element with 7.5, or 7.2, or any other decimals, so a scientist can’t have found one.
