With the help of spectral data given, calculate the mass of Neon and encircle the best option. (Percentage of 10Ne20, 10Ne21 and 10Ne22 are 90.92%, 0.26% and 8.82% respectively).
Correct answer: C. 20.18 amu
- A. 22.18 amu
- B. 21.18 amu
- C. 20.18 amu
- D. 22.20 amu
Explanation
relative atomic mass = (20 × 90.92 + 21 × 0.26 + 22 × 8.82) ÷ 100 = 20.179 ≈ 20.18
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