Advanced Chemistry All Answers Graded A+
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Advanced Chemistry All Answers Graded A+ 1. What is an atom? - Answer: The smallest particle of an element that maintains its identity in chemical reactions. 2. Define atomic mass. - Answer: Atomic mass is the weighted average of the masses of the isotopes of an element. 3. What does atomic number represent? - Answer: Atomic number indicates the number of protons in the nucleus of an atom of an element. 4. Explain what a group or column is in the periodic table. - Answer: A group or colu...