Why it does not specify the real cause of death is malaria for mosquito while in the tsetse fly, snail, etc it does? it is discriminative against mosquitoes!
OTOH we should exterminate dogs. They are a menace for humanity.
It didn't come with a good explanation. But the explanation it came with is that that is how much area the state would cover if it had the same population density of New Jersey.
It didn't come with a good explanation. But the explanation it came with is that that is how much area the state would cover if it had the same population density of New Jersey.
I like your explanation much better. Even for short-lived isotopes, exploding stars are so big that I have to imagine they produce far more of this material than is around from radioactive decay in the universe at large.
I was under the impression that Neptunium and Plutonium, being transuranic elements, weren't found in nature, but then my science knowledge is more than 20 years out of date.
"Plutonium is the element with the highest atomic number to occur in nature. Trace quantities arise in natural uranium-238 deposits when U-238 captures neutrons emitted by decay of other U-238 atoms."
Nowhere seems to say. Seaborg's discovery of Pu 239 was covered up because of the Manhattan Project, it is likely that they realised having made it that it may have existed naturally. Another natural isotope, Pu 244, was found in 1971 by a Darlene Hoffman at Los Alamos.
The point is to show where the elements originated from during the construction of the universe, so listing the ones which were only made by us doesn't make too much sense. Although it could be its own category.
The point is to show where the elements originated from during the construction of the universe, so listing the ones which were only made by us doesn't make too much sense. Although it could be its own category.
I find it hard to believe that anything humans can make in a lab don't get made regularly in a supernova. Now the natural made ones may decay too fast to be found in nature. But I don't think that can be taken to mean they never occur in nature.
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