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Author Question: Oxygen, O, (number 8), sulfur, S, (number 16), and selenium, Se, (number 34) have such similar ... (Read 56 times)

kwoodring

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on: Jul 29, 2018
Oxygen, O, (number 8), sulfur, S, (number 16), and selenium, Se, (number 34) have such similar chemical properties because
 
  A) their outermost shells contain the same number of electrons.
  B) because they are all located close to one another in the periodic table.
  C) they all have the same number of occupied shells.
  D) These elements can't have similar chemical properties because they are in different periods of the periodic table.

Question 2

What is the valence shell?
 
  A) It is the outermost shell of electrons in an atom.
  B) It is the shell of electrons in an atom that is the least reactive.
  C) It is the last partially filled orbital in an atom.
  D) It is the shell of electrons in element V (atomic no. = 23).
  E) It is the same as the orbital configuration.


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FergA

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: A


kwoodring

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Reply 2 on: Jul 29, 2018
Excellent

nothere

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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