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Basic Atomic Structure Worksheet Key 1
www.neshaminy.orgThe mQSS of an element is the average mass of an element's naturally occurring atom, or isotopes, taking into account the Of each isotope. The q of an element is the total number of protons and neutrons in the of atom. The mass number is used to calculate the number of O in one atom of an element. In
The Periodic Table of Elements - NASA
www.nasa.gov* The atomic weights listed on this Table of Elements have been rounded to the nearest whole number. As a result, this chart actually displays the mass number of a specific isotope for each element. An element's complete, unrounded atomic