deepak kumar singh AskiitiansExpert-IITM
Last Activity: 14 Years ago
dear Jay Patel
the unified atomic mass unit was adopted by the IUPAC in 1961. Hence, before 1961 chemists used the symbol amu for their respective atomic mass units. One still sometimes finds this usage in the scientific literature today. However, the accepted standard is now the unified atomic mass unit (symbol u), with: 1 u = 1.000 043 amu . Since 1961, by definition the unified atomic mass unit is equal to one-twelfth of the mass of a carbon-12 atom.
since 1u is almost equal to the 1amu, one still sometime use this convention, and as you know its take time to change the old tradition.
Please feel free to post as many doubts on our discussion forum as you can. We are all IITians and here to help you in your IIT JEE preparation.
Win exciting gifts by answering the questions on Discussion Forum..
ALL THE BEST
Regards
Deepak kumar singh