Mnemonic for learning reactivity series

K (potassium) -Katrina
Na (sodium) -Ne
Ca (calcium) -CAr
Mg (magnesium) -ManGi
Al (aluminium) -ALto
Zn (zinc) - ZeN
Fe (iron) -FErrari
Pb (lead) -Phir Bhi
H (hydrogen) -Hai 
Cu (copper) -CU (kyun)
Hg (mercury) -Mili
Ag (silver) - Silver 
Pl (platinum) - PLated
Au (gold) -AUdi