Answer by Noiralef for Is 12 amu for Carbon-12 exact or rounded?
Reading your comments to the other answer, I feel like something should be clarified here.In an atomic nucleus, a number of protons and neutrons are in a bound state -- just like an electron and a...
View ArticleAnswer by Martin Beckett for Is 12 amu for Carbon-12 exact or rounded?
Carbon12 is 12 unified amu by definition (see David's comment below).The masses you quote for free protons and neutrons are not the same as their mass when bound in a nucleus. The binding energy of C12...
View ArticleIs 12 amu for Carbon-12 exact or rounded?
I'm having a difficult time understanding how Carbon-12 has an atomic mass of 12. Each proton and neutron has an atomic mass that is just slightly above 1 amu, so wouldn't Carbon-12 also be above...
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