Naturally Occurring Neon (Ne)has the Following Isotopic Composition (The Mass

question 77

Multiple Choice

Naturally occurring neon (Ne) has the following isotopic composition (the mass of each isotope is given in parenthesis) . Calculate the atomic weight of neon in u from these data:  neon-20, 90.92% (19.99 u) ; neon-21, 0.257% (20.99 u) ; neon-22, 8.82% (21.99 u)

• A)28.97
• B)37.62
• C)2017
• D)20.17

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