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Author Question: Why does the size of the transition elements stay roughly the same as you move across a period? ... (Read 82 times)

washai

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on: Aug 27, 2018
Why does the size of the transition elements stay roughly the same as you move across a period?
 
  What will be an ideal response?

Question 2

A student weighed 30.00 g of sulfur in the lab. This is the same mass as
 
  A) 3.000  10-8 g.
  B) 3.000  10-5 kg.
  C) 3.000  10-5 mg.
  D) 3.000  104 ng.


kingfahad97

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Reply #1 on: Aug 27, 2018
Answer to Question 1

The electrons added as the transition element increase in atomic number are NOT being added to the outermost shell. They are being added to an inner shell where they shield the outer electrons from nuclear charge. The number of outermost electrons is constant. For each electron added across the period, an additional proton is also added. This keeps the effective nuclear charge roughly constant as the transition elements increase in atomic number within a given period. Therefore, the size of the transition elements within a period stays roughly constant.

Answer to Question 2

D


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washai

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Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


kingfahad97

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Reply #3 on: Aug 27, 2018
Great! Please up vote :D


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