The weighted average of the atomic masses of the naturally occuring isotopes of an element is the

June 2018 NY Regents Chemistry Exam

5 The weighted average of the atomic masses of the naturally occuring isotopes of an element is the (1) atomic mass of the element

(2) atomic number of the element

(3) mass number of each isotope

(4) formula mass of each isotope

Solution: Atomic mass of an element is the weighted average of the atomic masses of the naturally occurring isotopes of an element.

Answer: 1

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