Ответ:
Объяснение:
1) 222/86Rn----->4/2He + 218/84Po (полоний)
2) 218/84Po----->2(0/-1e) + 218/86Rn (радон)
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Verified answer
Ответ:
Объяснение:
1) 222/86Rn----->4/2He + 218/84Po (полоний)
2) 218/84Po----->2(0/-1e) + 218/86Rn (радон)
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