Week 11 Bohr Atom & Spectral Lines

Question 1

what can we say about a particle if it is trapped in some region by a potential

Answer 1

the wavelength of the particle will be quantised

Question 2

what happens to an electron in an atom that moves down an energy level

Answer 2

It emits a photon of discrete energy equal to the energy difference between the original and new energy level

Question 3

what happens to an electron in an atom that moves up in energy level

Answer 3

it absorbs a photon of discrete energy equal to the energy difference between the original and new energy level

Question 4

what happens to photons that don’t have any exact energy required for change in energy level

Answer 4

they don’t interact with the system

Question 5

what does the Hydrogen emission spectrum refer to

Answer 5

the wavelength of the electrons that are changing energy levels

Question 6

what is the Bohr energy equation

Answer 6

E = -13.6eV / n^2

Question 7

why is 13.6eV an important value

Answer 7

It is the ionisation energy of a H atom so the min energy required to move an electron from ground energy state to infinite energy state