Question & Answer: The radioisotope ^222_ Rn will (most likely) decay through A) gamma decay. B)…..

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The radioisotope ^222_ Rn will (most likely) decay through A) gamma decay. B) positron decay. C) electron capture. D) alpha decay. E)eurobeta decay. Which of the following isotopes is most likely to be unstable? A) ^66_30 Zn B) ^40_20 Cn C) ^19_9 F D) ^39_19 K E) ^58_24 Cr Cesium-134 is a beta emitter with a half-life of 2.0 years. How much of a 2.50-g sample of cesium-13 will remain after 10 years? A) 0.25 g B) 0.50 g C) 0.0024 g D)0.078 g E) none of these choices is correct