Potasium or Potassium: How To spell?
The word Potasium is misspelled against Potassium, a noun meaning "An Alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic weight 39.0. Symbol K (Kalium)."
Potassium has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings pota & ium which should not be misspelled with single 'S'
Wrong Spelling:  pota-s-ium  Correct Spelling:  pota-ss-ium 
Check more misspelled words of Potassium to spell it correct.