Q. 123.8( 5 Votes )

(i) Which element is used as a standard for atomic mass scale?

(ii) What is the value of mass of this reference atom?

Answer :

i. In 1961, for a universally accepted atomic mass unit, carbon-12 isotope was chosen as the standard reference for measuring atomic masses.


ii. One atomic mass unit is a mass unit equal to exactly 1/12th the mass of one atom of carbon-12.


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