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Stack #4616326

QuestionAnswer
group vertical column on periodic table
alkali metal a metal in Group 1, soft, reacts violently with water, oxidizes in air
alkaline earth metal a metal in Group 2, reacts with water and oxidizes in air
transition metal a metal in the middle of the periodic table which has multiple oxidation states
metal a element whose atoms loses electrons to become a positive ion
metalloid an element that has both metallic and nonmetallic properties
halogen an element in Group 17
noble gas a nonreactive element in Group 18
nonmetal element whose atoms will gain or share electrons in chemical reactions
atomic radius half the distance between two nuclei of identical atoms bonded together
ionization energy energy needed to remove the most loosely bound electron from an atom
allotrope two or more different forms of the same element; same element, built in a different way, Ex: diamond and graphite
electronegativity the measure of attraction for electrons in a bond
Created by: bricela
 

 



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