Earth Control, Tr, element #43 has 2 isotopes, 90Tr and 93Tr. If the abundance of 90Tr is 66.49 %, what is the average atomic mass of Tr? Be sure to round your answer to 2 decimal places and DO NOT include a unit. Give a number answer only.

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Types of Charge Carriers

A carrier is a type of object which carries a particular thing from one point to another point. For instance, people use different vehicles from one place to another, and the vehicle carries those people and acts as a carrier.