posted by Jiskhaa .
Which of the following metals would be expected to have the most unstable salts?
Please define for me what 'unstable salts' are please?
unstable salts: they deterioate, or decompose easily at low are moderate temperatures, or easily under electrolysis, or easily react with the atmosphere to form new compounds.
Chemically, they do not have a high heat of formation usually.
So pick a few compounds (oxide, sulfides), and compare the heats of formation. Hint: Silver is fairly easy to polish if the tarnish is silver sulfide? Why?