Ease of discharge for anions:
Sara's Niece Hannah Chose Bright Indigo.....This is for
Sulphate Nitrate Hydroxide Chloride Bromide Iodide...
****Ease of discharge increases DOWNWARDS****
PS: Chloride discharged in preference to hydroxide if chloride solution concentrated, otherwise vice versa
Ease of discharge for cations:
Pond Slime Can Make A Zoo Interesting Like Holy Cute Snow...
ie Potassium sodium calcium magnesium aluminium zinc iron lead Hydrogen copper silver
****Ease of discharge increases DOWNWARDS****