Calculate the energy (J) change associated with an electron ...

[dollx]

Calculate the energy (J) change associated with an electron transition from n = 2 to n = 5 in a Bohr hydrogen atom.
 
  A) 6.5  10-19 J
  B) 5.5  10-19 J
  C) 8.7  10-20 J
  D) 4.9  10-19 J
  E) 5.8  10-53 J

Question 2

The DRI values for vitamins and nutrients are set by
 
  A) the Food and Drug Administration.
  B) the Department of Agriculture.
  C) the Food and Nutrition Board of the U.S. National Academy of Sciences.
  D) each of the state governments.

[CourtneyCNorton]

Answer to Question 1

D

Answer to Question 2

C

[dollx]

Excellent

[TheNamesImani]

Gracias!