Exam 9: Atomic Physics

In the quantum model of the atom, the location of the electron is described in terms of ______________.

Matter waves are also called ______________ waves.

Bohr's revolutionary step in his theory was to ______________ the angular momentum of the electron.

Heisenberg's uncertainty principle states that it is impossible to know simultaneously which two properties of a particle?

Calculate the de Broglie wavelength of a 0.145-kg baseball moving at a speed of 45.2 m/s.

The wave function Ψ mathematically represents the ______________ associated with a particle.

With which object would the wave nature of matter be significant?

Which is another name for quantum mechanics?

Theoretical limits on measurement accuracy are set by a principle associated with which scientist?

The second excited state for an electron in a hydrogen atom would be where n equals ______________.

The energy of a photon equals ______________ multiplied by the frequency.

The ""billiard ball model" of the atom is associated with

Dispersing light that has traveled from a hot wire through a cool gas gives what type of spectrum?

Einstein's special theory of relativity deals with objects that are

If the energy of n = 6 is -0.378 eV and that of n = 4 is -0.850 eV in a hydrogen atom, a transition from n = 6 to n = 4 will emit a photon of what energy?

Calculate the energy in electron volts of the photon emitted when an electron in a hydrogen atom goes from n = 2 to n = 1.

The number of electrons in an atom of an element is the same as the element's

Calculate the radius in nanometers of the orbit of a hydrogen atom's electron with n = 5.

Light from an incandescent wire disperses into a(n) ______________ spectrum.

Heisenberg's uncertainty principle is most important for