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B2 Ch 3 Lesson 2

Organizing the Elements

TermDefinition
Atomic Mass The average mass of all the isotopes of an element.
Periodic Table An arrangement of elements showing the repeating pattern of their properties.
Chemical Symbol A one or two letter representation of an element.
Period A horizontal row of elements in the periodic table.
Group Elements in the same vertical column of the periodic table; also called family.
Created by: Juchrin
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