Calculate the average atomic mass of neon using the following data :Is

1.	Calculate the average atomic mass of neon using the following data :IsotopeAtomic massNatural Abundance20Ne19.9924 u90.92%21Ne20.9940 u0.26 %22Ne21.9914 u8.82 %
Answer» Average atomic mass of Neon (Ne) = \(\frac{(At.\,mass\,of\,^{20}Ne \times \%Abundance)+(At.\,mass\,of\,^{21}Ne \times \%Abundance)+(At.\,mass\,of\,^{22}Ne \times \%Abundance)}{100}\) \(=\frac{(19.99924u \times 90.92)+(20.9940u\times 0.26)+(21.99414u \times 8.82)}{100}\) = 20.1707 u. ∴ Average atomic mass of neon = 20.1707 u

Calculate the average atomic mass of neon using the following data :IsotopeAtomic massNatural Abundance20Ne19.9924 u90.92%21Ne20.9940 u0.26 %22Ne21.9914 u8.82 %

Answer»

Average atomic mass of Neon (Ne) =

\(\frac{(At.\,mass\,of\,^{20}Ne \times \%Abundance)+(At.\,mass\,of\,^{21}Ne \times \%Abundance)+(At.\,mass\,of\,^{22}Ne \times \%Abundance)}{100}\)

\(=\frac{(19.99924u \times 90.92)+(20.9940u\times 0.26)+(21.99414u \times 8.82)}{100}\)

= 20.1707 u.

∴ Average atomic mass of neon = 20.1707 u