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Pls explain the concept of relative atomic mass. Also is it the same as atomic weight nd avg atomic mass or different?

Pls explain the concept of relative atomic mass. Also is it the same as atomic weight nd avg atomic mass or different?

Grade:11

2 Answers

Priyanshu Gujjar
94 Points
2 years ago
Pls explain the concept of relative atomic mass. Also is it the same as atomic weight nd avg atomic mass or different?
Priya darshini
30 Points
2 years ago
Relative atomic mass or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass constant. a.m.u = 1/12th the mass of c12 carbon isotope.   in old version Relative atomic mass = mass of an atom/ mass of H isotope . now it is defined as the mass of atom/ amu of mass . relative atomic mass has no unit . relative mass is not same as atomic weight. atomic weight= average atomic mass= summation% Mx/100= X1M1+X2 M2 +.................. . WHERE % Is the percentage of abundance of given isotope. Mx= relative mass of isotope. X = fraction of abundance

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