The newly opened radon springs afford ample bathing, now daily used by 1, 200 guests at the " Actinon " bathhouse.
2.
Similarly, 219 Rn is derived from the most stable isotope of actinium ( 227 Ac ) named " actinon " and is an alpha emitter with a half-life of 3.96 seconds.
परिभाषा
any of a series of radioactive elements with atomic numbers 89 through 103 पर्याय: actinoid, actinide,
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