Bonding 5 (ionic Compounds) Flashcards
Ionic compounds are arranged in a
Crystal lattice
A crystal lattice is a three dimensional structure that is created when a _ forms
Salt compound
Nonmetal anions are larger in size than
Metal cations
The cations fit in the spaces between the _ as they line up
Anions
A crystal lattice looks like a
Marshmallow toothpick cube
Ionic bonds form due to large differences in _ among the ions
Electronegativity
Electronegativity is not the same as
Electron affinity
Electron affinity is the energy charge when an electron is accepted by
A neutral atom
Electronegativity is the ability of an atom to _ in a chemical bond
Attract itself to the electrons
The difference in electronegativity is easy to see when two elements from _ bond
Opposite sides of the periodic chart
Electronegativity increases across a period form _ to _
Left
Right
Ionic bonds will form neutral even if
More than one of same element is required
Because magnesium is in group 2, it gives up _ electrons
2
Because Cl only accepts one electron, in order to bond with magnesium
You need two chlorine and one magnesium
Two chlorine and one magnesium bond looks like
MgCl2
MgCl2 is a
Stable compound
Ionic compounds conduct electricity when
They are dissolved in water
Water causes ionic compounds to
Break up into ions again
Dissociation is when
Water causes compounds to break up into ions again
(Dissociation) once cations and anions are free to float around
They can conduct electricity
