You've got some radioactive isotopic that can spontaneously decay into some other nucleus.
我们有一些放射性同位素,这些同位素会自发变成其他的原子核。
The first type discovered -- alpha decay -- is when a radioactive particle emits a Helium nucleus !
我们发现的第一种衰变方式——阿尔法衰变——是放射性粒子产生氦分子!
The residual nucleus will, in general, undergo a radioactive transformation.
剩余核一般说来将发生一次放射性衰变。
The residual nucleus will, in general, undergo a radioactive transformation .
剩余核一般说来将发生一次放射性衰变。
A radioactive process in which an atomic nucleus loses energy by emitting a gamma ray without a change in its atomic or mass Numbers.
原子核的一种放射性过程,在这种过程中由于放出一个伽马射线而损失能量,但并不改变原子序数或质量。
In nature, the element, whose nucleus is unstable and will grows to be nuclear of other element, is called radioactive element.
在自然界,凡原子核不稳定,过一些时间自发地变成其它元素原子核的元素,称为放射性元素。
In nature, the element, whose nucleus is unstable and will grows to be nuclear of other element, is called radioactive element.
在自然界,凡原子核不稳定,过一些时间自发地变成其它元素原子核的元素,称为放射性元素。
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