Author Question: Calculate the energy (J) change associated with an electron transition from n = 2 to n = 5 in a Bohr ... (Read 80 times)

dollx · **on:** Aug 27, 2018

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.