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Science TNSB Mentoring
Class 10
Atoms and molecules
Introduction to atom and its mass
9.
Relative atomic mass
Question:
3
m.
Define: Relative atomic mass.
Relative atomic mass of an element is the
ratio
difference
between the average mass of its isotopes to \(1/12\)th part of the mass of a
carbon\(-13\)
carbon\(-12\)
atom. It is denoted as
\(A^r\)
\(A_r\)
\(r_A\)
\(R_a\)
.
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