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Which one has higher 1st Ionsitaion energy Iodine or Iodine (minus 1) i.e. iodine anion ? please provide the reason for this

Which one has higher 1st Ionsitaion energy Iodine or Iodine (minus 1)  i.e. iodine anion ?please provide the reason for this 

Grade:11

3 Answers

Rishav Ranjan
38 Points
4 years ago
I(minus) have more ionisation energy than I because I(minus) has 8 electrons in the outermost shell which is more stable and hence it has less tendency to lose electrons. Hence one have to give more energy to the atom to lose one electron from it. 
Arun
25750 Points
4 years ago
dear student
 
According to me I has greater Ionisation energy than I- as it is difficult to take one electron from I in comparison to I-
Aditya
16 Points
4 years ago
Iodine minus have more IE because removing election from half filled or full filled electronic configuration is difficult so req more amount of energy
 

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