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Author Question: How many electrons are in the valence shell of each atom? (a) Carbon (b) Nitrogen (c) Chlorine ... (Read 281 times)

Starlight

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on: Aug 23, 2018
How many electrons are in the valence shell of each atom?
  (a) Carbon
  (b) Nitrogen
  (c) Chlorine
  (d) Aluminum

Question 2

Define valence shell and valence electron


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EAN94

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Reply #1 on: Aug 23, 2018
Answer to Question 1

(a) Carbon
With a ground-state electron configuration of 1s2 2s2 2p2 , there are four electrons in the valence shell of carbon.
(b) Nitrogen
With a ground-state electron configuration of 1s2 2s2 2p3 , there are five electrons in the valence shell of nitrogen.
(c) Chlorine
With a ground-state electron configuration of 1s2 2s2 2p6 3s2 3p5 , there are seven electrons in the valence shell of chlorine.

(d) Aluminum
With a ground-state electron configuration of 1s2 2s2 2p6 3s2 3p1 , there are three electrons in the valence shell of aluminum.
Lewis Structures and Formal Charge

Answer to Question 2

The valence shell is the outermost occupied shell of an atom. A valence electron is an electron in the valence shell.


Starlight

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Reply #2 on: Aug 23, 2018
TY


EAN94

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Reply #3 on: Aug 23, 2018
You're welcome


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