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→Concept #
* '''Percentage composition of an element and its numerical problems'''
* '''Percentage composition of an element and its numerical problems'''
== Concept # ==
== Concept 1. Atomic mass and relative atomic mass. ==
=== Learning objectives ===
=== Learning objectives ===
'''After the completion of this concept learner's will able to'''
* define atomic mass
* identify the atomic mass of an given element from the periodic table
* explain the meaning of relative atomic mass
* solve the problems on relative atomic mass
=== Notes for teachers ===
=== Notes for teachers ===