Exam 3: Atomic Structure Explaining the Properties of Elements

The speed of light generally decreases when it passes through media other than a vacuum.The speed, v, is approximately c (2.998 *10⁸ m/s) divided by a quantity called the medium's refractive index, $\eta$ .In which of the following would the frequency of 193 nm light be the lowest? ( $\nu$ = c/ $\eta$ ; c = $\lambda$$\nu$ )

A shell consists of all _______.

Determine the wavelength of the line in the hydrogen atomic emission spectrum corresponding to the n_initial = 4 to n_final = 3 transition.

Astronomers have detected hydrogen atoms in interstellar space in the n = 732 energy level.Suppose an atom in this excited state emits a photon and undergoes a transition from n = 732 to n = 2.How much energy does the atom lose as a result of this transition? What is the wavelength of the emitted radiation? Is this transition part of the Lyman, Balmer, or Paschen series?

Which of the following has the smallest atomic radius?

How many unpaired electrons does the arsenide (AS^3-) ion have?

Using the periodic table, predict which element is likely to have the ground-state electron configuration [Xe]6s²4 $f$ ¹⁴5d⁵?

Which of the following statements regarding the sizes of atoms is NOT true?

Which of the following types of electromagnetic radiation has the shortest wavelength?

If each of the following metals is exposed to light with a wavelength of 240 nm, which will emit photoelectrons with the greatest kinetic energy?

Max Planck's theoretical work on blackbody emission and the experimental evidence provided by Albert Einstein's studies of the photoelectric effect revolutionized physics because they revealed that _______.

Atomic spectra are due to changes in the energy of _______.

The de Broglie wavelength of a particle traveling at 1% of the speed of light is 33.25 fm.Identify the particle from the following. (1 amu = 1.66054 * 10^-27 kg.)

Which statement below about electron density is FALSE?

Which of the following is quantized?

Which element below is expected to have the most negative electron affinity?

Write the electron configuration of Cr.

Which set of quantum numbers could be correct for the highest energy electron in lead, Pb?

If the principal quantum number is 7 (n = 7) and the angular momentum quantum number is 3 ( $l$ = 3), which of the following values is NOT an allowed value of the magnetic quantum number (m_l)?

Which of the following will lead to an increase in the kinetic energies of photoelectrons emitted when light is incident on a metal surface?