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Marissa Russo

Chapter 5 Vocabulary

TermDefinition
Periodic Table Is an arrangement of elements in columns, based on a set of properties that repeat from row to row
Period A row in a periodic table of elements the time required for one complete cycle of periodic motion a unit of geologic time into which geologist divide eras.
Periodic Table An arrangement of elements in columns based on a set of properties that water can easily pass through
Atomic Mass Unit One twelfth the mass of a carbon - 12 atom
Metals Elements that are good conductors of heat and electric current
Transition Metals Elements that form a bridge between elements on the left and right side of the periodic table
Nonmetals Elements that are poor conductors of heat and electric current
Metalloids Elements with properties that fall between those of metals and nonmetals
Valence Electrons Electrons that is in the highest occupied energy levels of an atom.
Alkali Metals The elements in Group 1A of the periodic table not including hydrogen.
Alkaline Metals The elements in Group 2A of the periodic table.
Halogen The element in Group 7A of the periodic table.
Nobel Gases The elements in Group 8A of the periodic table
Created by: marissa.russo