Bohr's Model And Limitations Question Preview (ID: 60488)


Review Of Bohr's Model And Its Limitations. TEACHERS: click here for quick copy question ID numbers.

For an electron in an atom to change from the ground state to an excited state,
a) energy must be released.
b) energy must be absorbed.
c) radiation must be emitted.
d) the electron must make a transition from a higher to a lower energy level.

14. If electrons in an atom have the lowest possible energies, the atom is in the
a) ground state.
b) excited state.
c) inert state.
d) radiation-emitting state.

The change of an atom from an excited state to the ground state always requires
a) absorption of energy.
b) emission of electromagnetic radiation.
c) release of visible light.
d) an increase in electron energy.

The French scientist Louis de Broglie theorized that
a) electrons could have a dual wave-particle nature.
b) light waves did not have a dual wave-particle nature.
c) the natures of light and quantized electron orbits were not similar.
d) Bohr's model of the hydrogen atom was completely correct.

Which model of the atom explains the orbitals of electrons as waves?
a) the Bohr model
b) Rutherford's model
c) the quantum model
d) Planck's theory

All of the following describe the Schrödinger wave equation except
a) it is an equation that treats electrons in atoms as waves.
b) only waves of specific energies and frequencies provide solutions to the equation.
c) it helped lay the foundation for the modern quantum theory.
d) it is similar to Bohr's theory.

A three-dimensional region around a nucleus where an electron may be found is called a(n)
a) spectral line.
b) orbital.
c) electron path.
d) orbit.

According to the quantum theory of an atom, in an orbital
a) an electron's position cannot be known precisely but can be predicted.
b) an electron has no energy.
c) electrons cannot be found.
d) electrons travel around the nucleus on paths of specific radii.

The velocity nor the position of an electron cannot be known at the same time according to
a) the butterfly effect
b) the dual nature of the electron
c) Heisenberg uncertainty principle
d) the photo electric effect

If the intensity of a photon is increased, but the photon has a lower energy than the electron to be ejected from a metal then
a) the electron will be ejected
b) the electron will not be ejected
c) the photon will be absorbed by the electron
d) the photon will be absorbed the metal

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