Ionic Compounds

Question	Answer
What is Ionic Bonding?	Electrostatic force of attraction between oppositely charged ions, forming a valence
What ΔEN characterises ionic bonding?	ΔEN > 1.7
What sort of macroscopic structure do ions form?	Giant ionic lattice
Describe the melting/boiling points of ionic compounds	Most solid at RTP Boiling points relatively high Melting points relatively high
Why are mpt/bpt so high?	Energy required to overcome strong electrostatic forces between ions
What causes an increase in mpt/bpt?	Smaller ions/higher charges
What are ionic compounds soluble in?	Polar solvents i.e. water, break the lattice shield the ionic charges
What ionic compounds are relatively insoluble in water and why?	Ionic compounds with large charges may have electrostatic attractions that are too high for water to break the lattice
Describe the electrical conductivity of ionic compounds	Don't conduct when solid, ions are fixed in the giant ionic lattice No mobile charge carriers When melted or dissolved in water, does conduct.

Resource summary

	Created by J yadonknow over 6 years ago