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Radiation is spontaneously emitted from hydrogen-3 nuclei, but radiation is not spontaneously emitted from hydrogen-l nuclei or hydrogen-2 nuclei. which hydrogen nuclei are stable? (1) nuclei of h-l and h-2, only(2) nuclei of h-l and h-3, only(3) nuclei of h-2 and h-3, only(4) nuclei of h-l, h-2, and h-3
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