Emision or Emission: How To spell?
The word Emision is misspelled against Emission, a noun meaning "That which is sent out, issued, or put in circulation at one time; issue; as, the emission was mostly blood."
Emission has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings emi & ion which should not be misspelled with single 'S'
Wrong Spelling:  emi-s-ion  Correct Spelling:  emi-ss-ion 
Find more incorrect spellings of Emission to spell right way.