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The atomic mass of .(8)O^(16) = 15.9949 ...

The atomic mass of `._(8)O^(16) = 15.9949` amu. Calculate the `BE//"nucleon"` for this atom. Mass `1n` and `1p` is 2.016490 amu and `m_(e) = 0.00055` amu.

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`" "` Mass of `1n+1p=2.016490` amu.
`:. " "` Mass of `8n+8p=8xx(2.016490)` amu.
`:. " " ` Total mass of `O^(16) "atom"=m(p+n)+m`(electron) `" " (m="mass")` ltbegt `=8 xx(2.016490)+0.00055xx8=16.13632` amu
`:. " " ` Mass defect `=16.1363-15.9949=0.1414` amu
`:. " "` BE=Mass defect `xx 931.478` Me V
`:. " " =0.1414 xx931.487=131.71` Me V
`:. " " "BE"//"nucleon"=("Total BE")/("No. of nucleons") =(131.71)/(16)=8.232` Me V
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