Which of the following has the smallest value of the first ionization energy: Ar,Cs,N,Cu,Rb?
A)Ar
B)Cs
C)N
D)Cu
E)Rb

Name: Which of the following has the smallest value of the first ionization energy: Ar,Cs,N,Cu,Rb? A)Ar B)Cs C)N D)Cu E)Rb
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Question

Quizplus · Accepted Answer

Cs has the smallest first ionization energy because it is the largest atom among the options, located at the bottom of the alkali metals group in the periodic table, indicating it has the most loosely held outer electron.

Which of the Following Has the Smallest Value of the First