The average atomic mass of neon based on following data is: $\begin{array}{*{20}{c}} {{\text{Isotope}}}&{{\text{Relatives}}\,\,{\text{abundance}}} \\ {{}^{20}Ne}&{0.9051} \\ {{}^{21}Ne}&{0.0027} \\ {{}^{22}Ne}&{0.0922} \end{array}$

NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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The average atomic mass of neon based on following data is:

\begin{array}{cccccccccccccccccccc} {{\text{Isotope}}}&{{\text{Relatives}}\,\,{\text{abundance}}} \\ {{}^{20}Ne}&{0.9051} \\ {{}^{21}Ne}&{0.0027} \\ {{}^{22}Ne}&{0.0922} \end{array}

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Correct option: B

20.187 u

Option B (20.187 u) is correct because it involves calculating the weighted average of the isotopic masses based on their relative abundances.