S Block Elements Question 74
Question: The decreasing order of the second ionization potentials of K, Ca and Ba is
Options:
A) K>Ca>Ba
B) Ca>Ba>K
C) Ba>K>Ca
D) K>Ba>Ca
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ {{K}^{+}}>C{{a}^{+}}>B{{a}^{+}} $ (IE decreases down the group)