它作为一种原子核衰变的副产物,产生在铀矿石里。
但是普渡大学的一组研究者用意想不到的方式挑战了衰变速率恒定这个假设。相比于原子核衰变,他们对随机数更感兴趣。
But that assumption was challenged in an unexpected way by a group of researchers from Purdue University who at the time were more interested in random Numbers than nuclear decay.
这么大的原子核不可能是稳定的,但在足够长的时间内,在真空附近组装一个原子核以观察真空的衰变是可能的。
A nucleus that large cannot be stable, but it might be possible to assemble one next to a vacuum for long enough to observe the decay of the vacuum.
它只是一个巧妙地通过衰变成锇和钽而假装成磁单极子的普通的铂原子核。
It was just a garden variety platinum nucleus pretending to be a monopole by cleverly decaying into osmium and tantalum.
而大统一理论则预言在原子核中的核子将衰变,重子数守恒将被破坏。
However, the nucleons in nucleus will decay and baryon-number conservation may not be absolute according to the Grand unified theory.
这四种新元素都是人造的,是由火花与原子核相互撞击并且循着放射性超重元素衰变的轨迹而发现的。
The four new elements, all of which are synthetic, were discovered by slamming lighter -nuclei into each other and tracking the following decay of the radioactive superheavy elements.
一年后,他们成功地让两个元素的原子核聚变,创造出了他们的首个113号元素原子核,但过了不到千分之一秒,它就衰变了。
A year later, they successfully fused two atomic nuclei from these elements, creating their first nucleus of element 113, but it decayed in less than a thousandth of a second.
在衰变时由原子核释放出能量。
During the disintegration energy is released from the nucleus.
在衰变时由原子核释放出能量。
During the disintegration energy is released from the nucleus.
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