Question

Which is the best predictor of the radioactive nature of an isotope?
O the proton-to-electron ratio
O the neutron-to-proton ratio
O the neutron-to-electron ratio
O the electron-to-proton ratio

Answer 1

The best predictor of the radioactive nature of an isotope is the neutron-to-proton ratio of the atom. Isotopes are atoms of elements having the same number of protons however they don't have the same number of neutrons.

Answer 2

The best predictor of the radioactive nature of an isotope is the neutron-to-proton ratio. The correct option is second.

What is proton?

The proton is a subatomic particle lies inside the nucleus of an atom of element. The number of proton gives an idea of the atomic number of the element.

Isotopes are the elements having the same number of protons but they don't have the same number of neutrons.

The best predictor of the radioactive nature of an isotope is the neutron-to-proton ratio.

Thus, the correct option is second.

Learn more about  proton.

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