Answer:
A.) False B.)False C.) True D.) False E.) False
Explanation:
Answer is (3) - ratio of neutrons to protons.
Isotopes are the atoms which have same atomic number but have different number of neutrons of same element.
Atomic nucleus can be stable or unstable. The stability of isotopes is based on neutron/ proton ratio. Unstable nucleus tries to become stable by emitting radiations.
The property is its polarity (or hydrogen bonds)
Carbon 14 because it has an approximate half life of 5000 years.
