Energy transition (bohrs model)

  • Thread starter mss90
  • Start date
  • #1
29
0

Homework Statement


By using the Bohr model of the atom:
whats the lowest energy transition from the n=2 to n=1
state in Hydrogen (Z=1)

Homework Equations


En = -13.6eV*Z2/n2

The Attempt at a Solution


En = -13.6eV*Z2/n2
n=2 -> n=1 for hydrogen (Z=1)
E2= -13.6eV*12/22 =-3.4 eV
E1= -13.6eV*12/12 = -13.6 eV
deltaE = x1 – x2 = -3.4 + 13.5 = 10.2 eV

So 10.2 eV is the lowest energy transition from n2 to n1 right?

Does the constant change with elements?
 

Answers and Replies

  • #2
DrClaude
Mentor
7,601
3,997
The question is strangely phrased, as there is no "lowest energy" for the transition, only the transition energy. Your calculation appers correct, although you should put in some effort when writing equations: 22 instead of 22 makes it unreadable.

Does the constant change with elements?
Within the limits of the Bohr model (only one electron, fixed nucleus, classical orbits), the constant is always the same.
 

Related Threads on Energy transition (bohrs model)

Replies
4
Views
3K
  • Last Post
Replies
13
Views
3K
  • Last Post
Replies
1
Views
7K
Replies
4
Views
18K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
7
Views
1K
  • Last Post
Replies
3
Views
649
Replies
5
Views
1K
Top