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Written by pimpitcha
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Friday, 28 March 2014 11:44 |
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An alternative look at the basic ideas behind quantities in Chemistry, including moles and Avogadro's number. The relative atomic mass of an element is the average mass of an atom, on a scale where one atom of the 12C isotope weighs 12 exactly. It is an average value, taking into account all the isotopes of the element.
ที่มา : www.youtube.com
ลิงค์ : http://youtu.be/0UMBi_Mqvhw
อัพโหลดโดย : ChemistryKlipz
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Last Updated on Friday, 28 March 2014 11:46 |
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