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Author Question: Elements in the same period have A) the same atomic number. B) the same number of neutrons. C) ... (Read 131 times)

melly21297

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Elements in the same period have
 
  A) the same atomic number.
  B) the same number of neutrons.
  C) the same number of valence electrons.
  D) none of the above

Question 2

How long will it take for a 5.0 g tritium sample to decay down to 0.313 g? The half-life of tritium is 12 years.
 
  A) 12 yrs
  B) 24 yrs
  C) 48 yrs
  D) 96 yrs



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reversalruiz

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Answer to Question 1

D

Answer to Question 2

C



melly21297

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Both answers were spot on, thank you once again




 

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