Scientists initially determined the atomic mass unit for oxygen by taking 1/16 of the mass of an atom of naturally occurring oxygen as the unit.
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Scientists initially determined the atomic mass unit for oxygen by taking 1/16 of the mass of an atom of naturally occurring oxygen as the unit.
Initially, scientists determined the atomic mass unit for oxygen by comparing the mass of oxygen atoms to that of hydrogen atoms. Later, it was refined using more accurate methods and standardized against carbon-12.