Part I Determine whether each of the following statements concerning line spectra are true or false....
Part I
Determine whether each of the following statements concerning line spectra are true or false.
1. Electrons can absorb energy from being heated in a flame.
2. Electrons are stable in excited states.
3. Electrons release energy as they return to the ground state.
4. Photons are produced when electrons release energy.
5. The energy of the photon can have any value.
6. The energy of the photon is related to the energy levels of the electron orbitals.
7. The energy of a photon is directly related to its frequency.
8. The frequency of a photon is directly related to its wavelength.
Homework Answers
- (1) is correct.
- (2) is incorrect. Excited states have high energies, stability is inversely proportional to the energy.
- (3) is correct. Ground state has lowest energy, so electrons have to release extra energy in order to return to the ground state.
- (4) is correct. Extra energy is released in the form of photons(or quanta).
- (5) is incorrect. Energy of a photon is discontinuous, given by hυ.
- (6) is correct. The energy of the released photon depends upon the orbital energies between an electron makes the transition.
- (7) is correct. Energy of a photon is hυ, where υ is frequency.
- (8) is incorrect. The frequency is inversely proportional to the wavelength, υ = c/λ.
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