Excited state carbon 12

In the ten-thousandth of a trillionth of a second before the beryllium decays back into two alpha particles, a third alpha particle sometimes smacks into the beryllium, fusing with it to form an excited, plus-size carbon-12 nucleus: the Hoyle state

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Explanation:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

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