Element Y Has Two Natural Isotopes: Y-63 (62

question 30

Multiple Choice

Element Y has two natural isotopes: Y-63 (62.940 amu) and Y-65 (64.928 amu) .Calculate the atomic mass of element Y given the abundance of Y-63 is 69.17%.

• A)63.55 amu
• B)64.00 amu
• C)64.32 amu
• D)107.85 amu
• E)108.46 amu

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