Posted by Mary on Friday, February 15, 2008 at 11:35pm.
1. All of the naturally occurring radioactive decay series end when the radioactive elements have decayed to
answer: Uranium (U)
2. This type of radiation can easily pass through a human.
3. This type of radiation is really the nucleus of a helium atom.
4. As the size of nuclei increases, the ratio of neutrons to protons in the band of stability increases to
3 to 1
1.25 to 1
2 to 1
1.5 to 1
answer: 1.5 to 1
- Chemistry please check - DrBob222, Saturday, February 16, 2008 at 12:15am
Ok except for #1. U is a radioactive element, naturally. There is a series for U-238, another series for U-235, and a third for Th-232. All end in Pb.
- Chemistry please check - Mary, Saturday, February 16, 2008 at 9:48am
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