Which of the following statements is/are CORRECT for an oxygen atom? 1. The effe

Question

Which of the following statements is/are CORRECT for an oxygen atom?

1.

The   effective nuclear charge felt by a 2s electron is greater than that   felt by a 1s electron.

2.

The   effective nuclear charges felt by 2s and 2p electrons are   identical.

3.

The   effective nuclear charge felt by a 2p electron is less than that felt   by a 2s electron.

a.

1 only

b.

2 only

c.

3 only

d.

1 and 3

e.

1, 2, and 3

  

1.

     

The   effective nuclear charge felt by a 2s electron is greater than that   felt by a 1s electron.

     

2.

     

The   effective nuclear charges felt by 2s and 2p electrons are   identical.

     

3.

     

The   effective nuclear charge felt by a 2p electron is less than that felt   by a 2s electron.

  

       

a.

         

1 only

         

b.

         

2 only

         

c.

         

3 only

         

d.

         

1 and 3

         

e.

         

1, 2, and 3

       

  

Explanation / Answer

1 and 3

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