Al-72 is unlikely. it is farther away from any other isotope.
Answer:
C: francium-221
Explanation:
First of all to get a broader perspective, every isotope of francium usually undergoes decay to form astatine, radium, or radon.
Now, Francium-223 and francium-221 are it's only isotopes that occur in nature.
However, francium-221 is the one that undergoes alpha decay to produce astatine-217.
Answer:
large atoms have Valence electrons further from the nucleus and lose them more readily.
Nucleus of the atom, that contains protons and neutrons.
Yes, because if its higher than their will be more aquatic life able to live their.