Chapter3: Electronic Structure And The Periodic Law
Section: Chapter Questions
Problem 3.62E
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Question
Choose the best element for the two questions below.
A) Largest atomic radius:
Li, B, F
B) Lowest ionization energy:
Na, Rb, Fr
Expert Solution
Step 1
A) Largest atomic radius: Li, B, F
atomic radius: it is the distance from the center of the nucleus to the outer most of the surrounding shells of electrons.
Lithium : 1s2 2s1
Boron : 1s2 2s2 2p1
fluorine : 1s2 2s2 2p5
in the periodic table as we go from left to right, the atomic radius decreases due to increase in nuclear charge, hence size of atom decreases.
hence among Li, B, F one having largest atomic radius is Lithium ( Li ).
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