Why different unit symbols - amu, u and dalton are used for representing atomic mass? And what does the term 'unified' mean in "unified mass unit"?
Thank you.
I saw in my textbook (NCERT class 11 part2 chemistry) that oxidation is defined as
gain of oxygen or more electronegative element by a substance.
After it was redefined and said as
oxidation is loss of electron(s) by any species.
Again it is being redefined and stated as
oxidatio...