Best Answer: Ok...here it goes... Socrates was noted for his dedication to careful reasoning. He sought genuine knowledge rather than mere victory over an opponent. He employed the same logical tricks developed by the Sophists to a new purpose, the pursuit of TRUTH.
The atomic mass of a specific atom or molecule is determined by using an experimental technique called mass spectrometry. This technique separates the different isotopes of atoms to allow determination of the percent abundance or isotopic composition of the element in the given sample.
New terms: The current system of atomic masses was instituted in 1961 and is based on the mass of 12C (read carbon twelve). By definition the atomic mass of a single 12C atom is exactly 12 atomic mass units (denoted by the abbreviation amu or u). The masses of all other elements are based on this standard.