Answer:
87.71
Explanation: acellus
88 AMU
Step-by-step explanation:
Average AMU = (84 x 0.0056) + (86 x 0.0986) + (87 x 0.0700) + (88 x 0.8258)
= 0.4704 + 8.4796 + 6.09 + 72. 64
= 87.68 AMU
= 88 AMU (sig figs)
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