7.2 Bohr's Model of Hydrogen Atom
13. A ____ spectrum consists of all the wavelengths of light. An example of such a
spectrum can be obtained by passing white light into a prism. (Slide 23)
14. A ____ spectrum consists of only certain wavelengths of light that are
characteristics of the element emitting those wavelengths. Therefore, it can be used to identify
the element. (Slide 24)
15. To explain the stability of the electrons in Rutherford's nuclear model, Bohr came up with a
model, in which electrons orbit the nucleus in a circular path similar to the
way planets orbit the Sun. (Slide 29)
16. Bohr suggested that the energy of an electron is ____ meaning it can only have
specific values. (Slide 29)
17. Summary of Bohr's model of the hydrogen atom (Slides 30-33)
a) Electrons revolve around the nucleus at one of several possible fixed _____;
each has a specific radius and ____.
b) As long as an electron remains in a certain orbital, it never gains or loses energy.
c) Each orbit is labeled with an integer n. The orbit with n = 1 is closest to the nucleus and has
the ____ energy. The energy of the orbit ____ as it is farther
away from the nucleus.
d) To move from a lower-energy orbit to a higher-energy orbit, the electron would have to
____ energy (usually light energy).
To move from a higher-energy orbit to a lower-energy orbit, the electron would have to
____ energy in the form of light.
e) ?E is the difference in the energy between two orbits. ?E = _____
?E corresponds to the photon energy absorbed or released. Ephoton = _____
7.3 The Modern Model of the Atom
18. The modern atom model is based on Schrödinger's wave function, ?(x) - the mathematic
equation of the electron wave. Electrons occupy ____ not ____
(slide 37)
