D-And F-Block Elements Ques 429
Question: Which has lowest and highest first ionization enthalpy in 3d series-
Options:
A) Cu and Cr
B) Cu and Se
C) Cu and Zn
D) Sc and Zn
Show Answer
Answer:
Correct Answer: D
Solution:
Sc $ (3d^{1}4s^{2}) $ has 631 kJ $ mo{{l}^{-1}} $ and $ Zn(3d^{10}4s^{2}) $ has $ 906kJ,mo{{l}^{-1}} $