Chemistry, 01.10.2021 23:40 Islandgirl67

URGENT!!! PLEASE HELP Europium has two naturally-occurring isotopes: europium-151 with an abundance of 47.82% and europium-153 with an abundance of 52.18%. Determine the average atomic mass for europium.

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URGENT!!! PLEASE HELP Europium has two naturally-occurring isotopes: europium-151 with an abundanc...