When radium-226 decays into radon-222, it emits an alpha particle as well as a gamma ray. Which of the following best describes this nuclear decay process?
W) A unique type of double alpha-gamma decay
X) The first alpha decay leaves the radon nucleus in an excited state
Y) Alpha emissions are always accompanied by gamma emissions
Z) The alpha particle undergoes beta decay, emitting a photon
✔️Answer:THE FIRST ALPHA DECAY LEAVES THE RADON NUCLEUS IN AN EXCITED STATE
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