Which of the following statements is true? A)The effective nuclear charge for th

Question

Which of the following statements is true?

A)The effective nuclear charge for the 1s orbital increases in going from oxygen to fluorine.

B)The effective nuclear charge for the 1s orbital decreases in going from oxygen to fluorine.

C)Shielding is by electrons in inner shells is more effective than shielding by electrons in the same shell.

D)Shielding is by electrons in inner shells is less effective than shielding by electrons in the same shell.

Answer Choices:

1) B and D

2) A and C

3) A and D

4) B and C

Explanation / Answer

2) A and C is the correct choice.

The effective nuclear charge for the 1s orbital increases in going from oxygen to fluorine and Shielding is by electrons in inner shells is more effective than shielding by electrons in the same shell.

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