Ionic bonding Flashcards
ionic bonding
electrostatic attraction between ions of opposite charges
strength of ionic bonds
stronger than intermolecular forces
weaker than covalent bonds
electrostatic force
the mutual attraction of unlike charges
ions
atoms or molecules that gain or lose an electron and become charged
what are positive ions called ?
cations
what are negative ions called ?
anions
compound ion
An ion which is made of multiple ions
formulae of carbonate ions
CO32-
formulae of nitrate ions
NO3-
formulae of hydroxide ions
OH-
formulae of sulphate ions
SO42-
formulae of ammonium ions
NH4+
How can ionic formulae be calculated?
by balancing charge
What doe the principle of electroneutrality state ?
the overall charge must be zero
What doe the principle of electroneutrality state ?
the overall charge must be zero
when do ionic compounds form?
form when millions of metal ions transfer their outer electrons to millions of non metal atoms at the same time
ionic lattice
giant structures that are held together by strong electrostatic forces between the positive and negative ions
empirical formulae
simplest ratio of ions possible