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radioactive 音标拼音: [r,edio'æktɪv]

a. 放射性的,有放射能的

放射性的,有放射能的

WordNet (r) 3.0 (2006) (WordNet)

radioactive
adj 1: exhibiting or caused by radioactivity; "radioactive
isotope"; "radioactive decay"; "radioactive fallout"
[ant: {nonradioactive}]

The Collaborative International Dictionary of English v.0.48 (gcide)

radioactive \ra`di*o*ac"tive\ (r[=a]`d[i^]*[-o]*[a^]k"t[i^]v),
a. [Radio- active.]
1. (Physics) Capable of luminescence under the action of
cathode rays, X rays, or any of the allied forms of
radiation. [obsolete]
[Webster 1913 Suppl.]

2. (Physics) of, exhibiting, or caused by {radioactivity}.
[PJC]

English-German (Internet Dictionary Project)

radioaktiv[Adjective]

English-Spanish (Internet Dictionary Project)

radioactivo[Adjective]

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Radioactive	查看　Radioactive　在Google字典中的解释	Google英翻中〔查看〕
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英文字典中文字典相关资料:

Radioactivity | Definition, Types, Applications, Facts | Britannica
radioactivity, property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously It is, in essence, an attribute of individual atomic nuclei
Radioactive decay - Wikipedia
A material containing unstable nuclei is considered radioactive Three of the most common types of decay are alpha , beta , and gamma decay The weak force is the mechanism that is responsible for beta decay, while the other two are governed by the electromagnetic and nuclear forces
What Is Radioactivity? - Energy. gov
As its name implies, radioactivity is the act of emitting radiation spontaneously This is done by an atomic nucleus that, for some reason, is unstable; it "wants" to give up some energy in order to shift to a more stable configuration
RADIOACTIVE Definition Meaning - Merriam-Webster
The meaning of RADIOACTIVE is of, caused by, or exhibiting radioactivity
Radioactivity: Definition, Types, Formula, and Applications - Science Facts
Radioactivity occurs when an atom has an excess of energy, mass, or both, making its nucleus unstable To reach a lower, more stable energy level, it releases energy in the form of radiation This radiation can be emitted as particles or electromagnetic waves, depending on the nature of the decay
DOE Explains. . . Radioactivity | Department of Energy
Radioactivity is the release of energy from the decay of the nuclei of certain kinds of atoms and isotopes Atomic nuclei consist of protons and neutrons bound together in tiny bundles at the center of atoms
What Exactly Is Radioactivity - Science ABC
What Exactly Is Radioactivity ? Radioactive decay is a nucleus’ journey to attaining stability via emission of highly energetic radiation and subatomic particles This phenomenon is called radioactivity
RADIOACTIVE | English meaning - Cambridge Dictionary
RADIOACTIVE definition: 1 having or producing powerful and dangerous energy that comes from the breaking up of atoms: 2… Learn more
Radioactive sources: what they are, types, usefulness and safety
Radioactive sources are materials that emit ionizing radiation due to the radioactive decay of their unstable atomic nuclei Throughout history, these sources have proven valuable in various applications, from medicine and industry to scientific research
13. 3: Radioactivity and Half-Life - Chemistry LibreTexts
As time passes, less and less of the radioactive isotope will be present, and the level of radioactivity decreases An interesting and useful aspect of radioactive decay is half life (t 1 2), which is the amount of time it takes for one-half of a radioactive isotope to decay The half-life of a specific radioactive isotope is constant; it is

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