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Ions Review

Review of cations and anions

overall charge of an ionic compound neutral
groups that are cations 1A , 2A , 3A
groups that are anions 5A , 6A, 7A
ion type that keeps the same name of the element cation
ending of the name of all anions ide
outside/outermost electrons ; responsible for chemical properties valence
change in the number of electrons ion
electrons that are closer to the nucleus of atom core
Visual representation of valence electrons only Lewis Dot structure
the charge of cations positive
the charge of anions negative
says that atoms of elements need 8 valence electrons to be stable octet rule
cations do this with valence electrons lose them
anions do this with valence electrons gain til they have 8
compound made between a cation and anion ionic
this happens to electrons in ionic bond transfer from cation to anion
element already stable with 2 valence electrons Helium [He]
elements in this group do not react with others; already stable 8A / Noble Gases
the number of valence electrons match this number group number
ability to attract electrons from nearby atoms electronegativity
name of group 7A ions only halide
fastest method to predict formula of ionic compound criss-cross
the number of total electrons matches this number atomic number
Created by: cadetjt