Chapter 5: Ionic Bonding

Question 1

how are ionic compounds formed

Answer 1

electrons from valence shells are given or gained to form ions.

ions that are positively charged and negatively charged bond together through electrostatic attraction

generally a metal or non-metal or two elements with differing electronegativities

Question 2

why are ionic substances brittle, high melting point, no electrical conductivity while solid but not while liquid

Answer 2

brittle: when the ionic lattice shifts, same charges align and they repel

high melting point: electrostatic attraction is strong which holds the structure together. high amounts of energy required to break lattice.

conductivity: there are no free moving charged particles while solid but when liquid ions are free to move and conduct electricity.