First slide
Size of nucleus

Which of the following atoms has the lowest ionization potential?


Since the  55Cs 133  has larger size among the four atoms gives, thus the electrons present in the outermost orbit will be away from the nucleus and the electrostatic force experienced by electrons due to nucleus will be minimum. Therefore, the energy required to liberate electron from outer will be minimum in the case of  55Cs 133



Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App