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What is different about two different isotopes?
两种不同的同位素有什么不同？
What fundamental forces determine the stability
of the nucleus?
哪些基本力决定核的稳定性？
Compare the size of the nucleus to the size of the atom.
将核的大小与原子的大小进行比较。
How are the sizes of such small things measured?
这样的微小事物如何测量其尺寸？
What is radioactivity and why does it happen?
什么是放射性，它为什么会发生？
Describe the three most common types of radioactivity.
描述三种最常见的放射性类型。
Which of the types of radioactivity is most dangerous
outside your body? ... inside your body?
在你身体外，哪种放射性类型最危险？……在你身体内呢？
How do the energies involved in radioactivity compare
with those in atomic spectra, visible light, etc.?
放射性涉及的能量与原子光谱、可见光等相比如何？
What is meant by radioactive half-life? Given an
amount of a radioactive substance, how much will
remain after three half-lives?
什么是放射性半衰期？给定一定量的放射性物质，经过三个半衰期后还剩多少？
What effect will raising the temperature of a radioactive
substance have on its half-life? What effect will
combining it into a chemical compound have? If a
radioactive sample is vaporized, will that decrease
its half-life?
提高放射性物质的温度对其半衰期有什么影响？将其结合成化学化合物又会有什么影响？如果将放射性样品蒸气化，这会减少其半衰期吗？
How can you tell if an amount of radiation is a health
hazard?
如何判断一定量的辐射是否构成健康危害？
What kind of objects may be dated by carbon dating?
About what maximum age would you expect to be
able to determine with carbon dating?
哪些物体可以使用碳测定法进行年代测定？使用碳测定法，你预期能确定的最大年龄大约是多少？
What do you mean by "clocks in the rocks"? What
sources of uncertainties are inherent within
radioactive dating techniques?
你所说的‘岩石中的时钟’是什么意思？放射性鉴年法技术中有哪些固有的不确定性来源？
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