SINGLE VALENT METAL IONIC COMPOUNDS

Writing Names Write the name of the metal Write the name of the non-metal changing the ending to ide

Examples SrF2 Strontium flouride Li3P Lithium Phosphide Ca3N2 Calcium nitride ZnS Zinc sulphide K2O Potassium oxide

Writing formula The symbol for the metal is always written first followed by the symbol for the non-metal To determine the number of ions of each element, find the least number of each such that the total positive charge = the total negative charge

Examples Potassium Chloride K+1 Cl-1 You Just need one of each to make a neutral molecule KCl

Calcium Iodide Ca+2 I-1 I-1 +2 -2 CaI2

Sodium Phosphide Na+1 P-3 Na+1 ________________ +3 -3 Na3P

Aluminum Nitride Al+3 N-3 We just need 1 of each AlN

Aluminum Oxide Al+3 O-2 O-2 _________________ +6 -6 Al2O3