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Title: What is the average atomic mass for an element (number presented below the element symbol on the etc? Post by: tomtom1 on Jan 6, 2013 What is the average atomic mass for
an element (number presented below the element symbol on the periodic table)? 5 points to the best answer Title: What is the average atomic mass for an element (number presented below the element symbol on the etc? Post by: leon1977 on Jan 6, 2013 It is the weighted average of the atomic masses of all naturally occurring isotopes of the element.
For example, if an element has 24% of isotope of mass Y, it will contribute Y x 24/100 to the stated mass in the periodic table. |