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secondary 3 | Chemistry
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how to calculate the Mr values
Date Posted: 7 months ago
Views: 219
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Hello! To calculate Mr, we use the mass number of the atom in the periodic table. Mass number is the number on top of the atom in the periodic table. For example, mass number of sodium is 23 (you can refer to your periodic table in textbook, or google).
Date Posted:
7 months ago
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