Oxygen-16 and Carbon-12 are stableisotopes of elements O and C respectively. Hence, they do not have half-lives. But Carbon-14 andUranium-238 are radioactive isotopes. Among them Carbon-14 has relatively short half-life as about 5730 years while Uranium-238 has a long half-life as about 4.5 billion years.
Answer is. uranium-238
For the answer to the question above, I believe that <span>Pascal’s IQ is <u><em>below average.
</em></u></span><span>He must have the same IQ as his age or even higher.<u><em>
</em></u></span><span>I hope this helps. Have a nice day!<u><em>
</em></u></span>
<span>There are three major groups of mammals, categorized on the basis of their method of reproduction. Monotremes lay eggs to have children instead of having the mother bear them. The second type of mammal is the marsupial, which are non-placental animals who carry their young in their pouches. Eutherians are the third group who are placental mammals.</span>
Answer:Neon
Explanation:
Less amount of energy levels
