Test 1 Flashcards
All conventional ionic compounds have the following properties
- crystals of ionic compounds are hard and brittle
- ionic compounds have high melting points
- when heated to molten state, ionic compounds conduct electricity
- many ionic compounds dissolve in high-polarity solvents
(T/F) The conversion of many atoms to ions results in a significant change in size.
True
If the cation has multiple charge, then the ionic radius becomes ______.
smaller
If the anion has multiple charge, then the ionic radius becomes _______.
larger
(T/F) It is generally true that metal cations are smaller than nonmetal anions.
True
Both anions and cations increase in radius _____ down a group.
down
The ______ the ion, the shorter the interionic distance; hence the stronger the ________ attraction and the ______ the melting point.
smaller, electrostatic, higher
The ______ the charge, the higher the melting point.
higher
A cation will be more ______ if it is small and highly positively charged.
polarizing
An anion will be more easily polarized if its _______ and highly negatively charged.
large
Polarization is favored by ________ that do not have noble gas configurations.
cations
As cation charge _______ the probability of covalent behavior increases.
increases
Melting points of ________ are larger than melting points of _______.
ionic compounds
small covalent compounds
+1
ionic, except some lithium compounds
+2
ionic, except some magnesium and beryllium compounds
