Exam 30: The Nature of the Atom

An argon-ion laser emits a blue-green beam of light with a wavelength of 514.5 nm in a vacuum. What is the difference in energy in joules between the two energy states for the atomic transition that produces this light?

The second ionization energy (the energy required to remove the second outermost electron) of calcium is 11.9 eV. Determine the maximum wavelength of incident radiation that can be used to remove the second electron from a calcium atom?

Which quantum number applies to most of the electrons in a collection of hydrogen atoms at room temperature?

The figure shows an energy level diagram for the hydrogen atom. Several transitions are shown and are labeled by letters. Note: The diagram is not drawn to scale. -Determine the energy of the photon involved in transition E.

What energy (in eV) is required to remove the remaining electron from a singly ionized helium atom, He⁺ (Z = 2)?

A neutral atom has the following electronic configuration: 1s² 2s² 2p⁶ 3s² 3p⁵ -To which group of the periodic table does this element belong?

Consider the following list of electron configurations: -Which one of the above configurations represents a neutral atom that readily forms a singly charged positive ion?

According to the quantum mechanical picture of the atom, which one of the following statements is true concerning the magnitude of the angular momentum L of an electron in the n = 3 level of the hydrogen atom?

The figure shows an energy level diagram for the hydrogen atom. Several transitions are shown and are labeled by letters. Note: The diagram is not drawn to scale. -Which transition will occur when a hydrogen atom is irradiated with radiation of frequency 1.60 × 10¹⁴ Hz?

The figure shows an energy level diagram for the hydrogen atom. Several transitions are shown and are labeled by letters. Note: The diagram is not drawn to scale. -Which transition involves the longest wavelength line in the visible portion of the hydrogen spectrum?

What is the operating voltage of a medical X-ray machine that has a cut-off wavelength of 2.20 × 10^-11 m?

Which one of the following factors best explains why the six electrons of a carbon atom are not all in the 1s state?

Electrons have been removed from a lithium atom (Z = 3) until only one remains. Determine the energy of the photon that can be emitted if the remaining electron is in the n = 2 level.

The figure shows an energy level diagram for the hydrogen atom. Several transitions are shown and are labeled by letters. Note: The diagram is not drawn to scale. -Which transition corresponds to the absorption of the photon with the longest wavelength?