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:
1, mass is like how big it appears and weight could be small and be more weight then something with alot of mass
2, sorry i dont know
3, Jupiter you would weigh the most and the least is mars
4, the sun and if it was changed all the plants would eventually collide and go out of order
5, gravity, electricity and magnetism
Explanation:
The answer would be C. Movement of crustal plates.
<span>Friction creates heat which in turn can lead to deviations from the original size and shape of a part.
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Answer:
C. sea water
Explanation: basically when you see words that look like someone sneezed and whatever they managed to type (example: Copernicium) just go ahead and eliminate it when it comes to mixtures. Distilled water was there to trick you. Always look for the distilled part, that means it is pure, and therefore not a mixture.