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Periodic Table Vocab

Periodic table

QuestionAnswer
Each row in a periodic table. period
A column in the periodic table. group
The pattern of repeating properties on the periodic table. periodic law
Defined as one twelfth the mass of a carbon-12 atom. Equal to the mass of a proton. atomic mass unit
Elements that are good conductors of electricity and heat, are solid at room temp, and malleable. metals
Elements that form a bridge between elements on the left and right sides of the table. transition metals
Elements that are poor conductors of electricity and heat, are mostly gases at room temp, and are brittle. nonmetals
Elements with properties that fall between metals and nonmetals. metalloids
Electrons in the outer energy level of an atom. valence electrons
Group 1A elements. alkali metals
Group 2A elements. alkaline earth metals
Group 7A elements. halogens
Group 8A elements. Very unreactive. noble gases
The possible energies that electrons in an atom can have. energy level
Created by: johnbarbo
 

 



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