Potassium (K), Sodium (Na), calcium(Ca), magnesium (Mg), aluminium (Al), zinc (Zn), iron (Fe), nickel (Ni), tin (Sn), lead (Pb), copper (Cu), mercury (Hg), sliver (Ag), gold (Au), platinum (Pt).
the ones at the bottom of the list are the least reactive and the ones on the top of the list are the most reactive