CHEM 1211 - Knewton Alta 2.5 (Chemical Symbols)
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A chemical symbol will most often have how many letters?
2
The symbol Fe could refer to which of the following? Select the best answer below. an iron atom The element known as "iron." a macroscopic sample of iron all of the above
All the above
The chemical symbol "CL" with two capital letters is used to represent which element?
It is not a valid chemical symbol
Which element is NOT abbreviated based on an ancient name? iron radium sodium lead
Radium
