Classification Of Elements And Periodicity In Properties Question 103
Question: Second and successive electron affinity of an element
Options:
A) is always successive (energy is released)
B) is always positive (energy is released)
C) can be positive or negative
D) is always zero in a closed system
Show Answer
Answer:
Correct Answer: B
Solution:
$ {O _{(g)}}+{{e}^{-}}\overrightarrow{-EA_1}{{O}^{-}} _{(g)}+{{e}^{-}}\overrightarrow{+EA_2}{{O}^{2-}} _{(g)} $ Energy is required to add an electron to the negatively charged species due to electron-electron repulsion.
BETA
