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Chapter5Vocab

Chapter5VocabWords

TermDefinition
Periodic Table An arrangement of elements in columns, based on a set of properties that repeat from row to row.
Period Each row in the Periodic table is named this
Group Each column in the Periodic table is named this
Periodic Law The pattern of repeating properties
Atomic Mass Unit (AMU) Defined as one-twelfth of a Carbon-12 atom
Metals Elements that are good conductors of electric current and heat
Transition Metals Elements that form a bridge between the elements on the left and right sides 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 Electron An electron that is in the highest occupied energy level of an atom
Alkali Metals These metals have a single valence electron and are extremely reactive. Group 1A
Alkaline Earth Metals These metals have two valence electrons. Group 2A
Halogens Each of these has 7 valence electrons. Group 7A
Noble Gases All of these elements contains 8 valence electrons except for Helium. Group 8A
Created by: cameren.hicks