Chemistry Practice Problems Effective Nuclear Charge Practice Problems Solution: In which orbital does an electron in a lithium ato...

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Solution: In which orbital does an electron in a lithium atom experience the greatest shielding?a. 2pb. 2sc. 3pd. 3se. 1s 

Problem

In which orbital does an electron in a lithium atom experience the greatest shielding?

a. 2p

b. 2s

c. 3p

d. 3s

e. 1s 


Solution

We’re being asked to determine the orbital in which an electron in a lithium (Li) atom experiences the most shielding


Recall that shielding is the resistance of an electron from the attractive forces exerted by the nucleus


Electrons that are further away from the nucleus have greater shieldingThis means the orbital that experiences that greatest shielding is farthest from the nucleus.


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