List of ions (Name, Symbol and Charge) -You MUST memorise this list for ATAR ChemistryPositive Ions +1 Name +2 Formula Name +3 Formula caesium ion hydrogen ion lithium ion potassium ion rubidium ion silver ion Cs Ag + barium ion calcium ion cobalt(II) ion copper(II) ion iron(II) ion lead(II) ion sodium ion Na + magnesium ion Mg2+ ammonium NH4 manganese(II) nickel(II) ion strontium ion zinc ion Negative Ions -2 Name carbonate ion Mn 2+ Ni 2+ + H+ Li + K+ Rb + + -1 Name bromide ion Formula chloride ion C! - cyanide ion Ba 2+ Ca 2 + Co 2+ Name Formula aluminium ion chromium(III) iron(III) ion A! 3+ Cr 3+ Fe 3+ Cu 2+ Fe 2+ Pb 2+ Sr 2 + Zn 2 + -3 CO 32- Name nitride ion N 3- chromate ion CrO 24- phosphate ion PO 34- CN - dichromate ion Cr2 O 72- dihydrogenphosphate H 2 PO -4 hydrogenphosphate HPO 24- ethanoate (acetate) CH 3 COO- oxalate ion C 2 O 24- fluoride ion F- sulfate ion SO 24- hydrogencarbonate HCO3- sulfide ion S 2- hydrogensulfate ion HSO-4 sulfite ion SO 32- hydroxide ion iodide ion nitrate ion OH - oxide ion nitrite ion NO -2 permanganate ion MnO -4 Br - I- NO3- Formula O2- Formula