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Author Question: If an atom has become a positive ion, it has A) gained an electron or electrons. B) ... (Read 127 times)

meagbuch

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  • Posts: 568
on: Jul 29, 2018
If an atom has become a positive ion, it has
 
  A)
 
  gained an electron or electrons.
  B)
 
  lost an electron or electrons.
  C)
 
  gained a proton or protons.
  D)
 
  gained a proton and an electron.
  E)
 
  lost a proton or protons.

Question 2

What is the nuclear radius of 90Sr?
 
  A)
 
  4.0  10-15 m
  B)
 
  1.2  10-15 m
  C)
 
  1.1  10-13 m
  D)
 
  5.4  10-15 m
  E)
 
  3.3  10-13 m


kristenb95

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

B

Answer to Question 2

D


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