Exam 9: Atomic Physics

What is the energy of a photon with a frequency of 5.2 × 10¹⁴ Hz?

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

The quantity h in the Bohr theory is called ______________.

For a specific element,photons of how many different energies could be emitted by electrons in the n = 4 level as they return to the n = 1 level?

According to the Schrödinger equation,the probability of finding a hydrogen atom's ground-state electron 0.053 nm from the proton is

The Bohr theory was developed to explain which of these phenomena?

The removal of an electron from an atom is called

The lines in the visible region of the hydrogen spectrum are known as the

If the energy of n = 5 is -0.544 eV and that of n = 2 is -3.40 eV in a hydrogen atom,a transition from n = 2 to n = 5 will absorb a photon of what energy?

An electron is in its lowest energy level when

The dilemma known as the ultraviolet catastrophe was resolved in 1900 by

The ancient Greek who is known for championing the concept of atom was named ______________.

When an electron in an atom moves from a lower energy level to a higher one,a ______________ is ______________.

Which of the following is the de Broglie equation?

Addition of an electron to an atom gives a

Addition of an electron to an atom leaves a

Fluorescence occurs when samples of some materials are exposed to rays of which EMR region?

Calculate the de Broglie wavelength for an electron (m = 1 × 10^-30 kg)moving at 2.4 × 10⁶ m/s.

The planetary model of the atom is associated with

Who,in 1925,postulated that matter,as well as light,has properties of both waves and particles?