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Akimi4 [234]
4 years ago
13

Is the second energy level of the oxygen atom full? Explain

English
1 answer:
My name is Ann [436]4 years ago
5 0
No it isn’t because the atomic number of oxygen is 8.

Electronic configuration-
2,6 (=8)

The total electrons that can be accommodated is 8 in the second shell. There are 2 empty spaces.
Hence it is not full.
(And the valency therefore is 2)

Extra info:
According to the electronic configuration rules, the first energy level will have 2, then 8, 18, 32 and so on, but the electrons in the outmost energy level can only be till 8.
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What is the BEST way to revise this sentence so that it conveys clear, concise ideas and does not change the meaning of the sent
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Answer:

D) Gwendolyn Brooks, a shy woman who did not stand out in the crowd, was a well-known American poet.

Explanation:

This is the original sentence:

Gwendolyn Brooks was shy, and she did not stand out in a crowd, yet she was a well-known American poet.

This is A, revision one:

Brooks was a well-known American poet. She was very shy.

This is not a good edit, because it would cut of the fact that she didn´t stand out. The part about not standing out is necessary to fully empathize the author´s point.

This is B, revision two:

Gwendolyn was a shy person who did not stand out in a crowd.

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This is C, revision 3:

Gwendolyn Brooks is one of my favorite American poets. She was shy as a young girl.

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This is D, revision 4, and our correct answer:

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