Chemistry: The Molecular Nature of Matter and Change
Chemistry: The Molecular Nature of Matter and Change
8th Edition
ISBN: 9781259631757
Author: Martin Silberberg Dr., Patricia Amateis Professor
Publisher: McGraw-Hill Education
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Chapter 7, Problem 7.20P

(a)

Interpretation Introduction

Interpretation:

Whether the electronic transition, n=2 to n=4 corresponds to absorption or emission spectra is to be determined.

Concept introduction:

Atomic spectrum is a series of electromagnetic radiations absorbed or emitted when electrons in an atom undergo transitions between different energy levels.

Absorption spectra - When an atom is subjected to energy in the form of heat or light, the electrons absorb the energy. If an electron in a lower energy level absorbs a photon whose energy is equal to the difference in the energies of the lower energy level and a higher energy level, the electron jumps to the higher energy level. The absorption spectra are characterized by the presence of a series of dark lines separated by coloured bands.

Emission spectra – In the emission spectra, an electron in the higher energy level jumps to a lower energy level by releasing energy. The emission spectra are characterized by the presence of a series of fine lines at specific wavelengths separated by black spaces.

(b)

Interpretation Introduction

Interpretation:

Whether the electronic transition, n=3 to n=1 corresponds to absorption or emission spectra is to be determined.

Concept introduction:

Atomic spectrum is a series of electromagnetic radiations absorbed or emitted when electrons in an atom undergo transitions between different energy levels.

Absorption spectra - When an atom is subjected to energy in the form of heat or light, the electrons absorb the energy. If an electron in a lower energy level absorbs a photon whose energy is equal to the difference in the energies of the lower energy level and a higher energy level, the electron jumps to the higher energy level. The absorption spectra are characterized by the presence of a series of dark lines separated by coloured bands.

Emission spectra – In the emission spectra, an electron in the higher energy level jumps to a lower energy level by releasing energy. The emission spectra are characterized by the presence of a series of fine lines at specific wavelengths separated by black spaces.

(c)

Interpretation Introduction

Interpretation:

Whether the electronic transition, n=5 to n=2 corresponds to absorption or emission spectra is to be determined.

Concept introduction:

Atomic spectrum is a series of electromagnetic radiations absorbed or emitted when electrons in an atom undergo transitions between different energy levels.

Absorption spectra - When an atom is subjected to energy in the form of heat or light, the electrons absorb the energy. If an electron in a lower energy level absorbs a photon whose energy is equal to the difference in the energies of the lower energy level and a higher energy level, the electron jumps to the higher energy level. The absorption spectra are characterized by the presence of a series of dark lines separated by coloured bands.

Emission spectra – In the emission spectra, an electron in the higher energy level jumps to a lower energy level by releasing energy. The emission spectra are characterized by the presence of a series of fine lines at specific wavelengths separated by black spaces.

(d)

Interpretation Introduction

Interpretation:

Whether the electronic transition, n=3 to n=4 corresponds to absorption or emission spectra is to be determined.

Concept introduction:

Atomic spectrum is a series of electromagnetic radiations absorbed or emitted when electrons in an atom undergo transitions between different energy levels.

Absorption spectra - When an atom is subjected to energy in the form of heat or light, the electrons absorb the energy. If an electron in a lower energy level absorbs a photon whose energy is equal to the difference in the energies of the lower energy level and a higher energy level, the electron jumps to the higher energy level. The absorption spectra are characterized by the presence of a series of dark lines separated by coloured bands.

Emission spectra – In the emission spectra, an electron in the higher energy level jumps to a lower energy level by releasing energy. The emission spectra are characterized by the presence of a series of fine lines at specific wavelengths separated by black spaces.

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Chapter 7 Solutions

Chemistry: The Molecular Nature of Matter and Change

Ch. 7.3 - Prob. 7.5AFPCh. 7.3 - Prob. 7.5BFPCh. 7.4 - What are the possible l and m1 values for n = 4? Ch. 7.4 - Prob. 7.6BFPCh. 7.4 - Prob. 7.7AFPCh. 7.4 - Prob. 7.7BFPCh. 7.4 - Prob. 7.8AFPCh. 7.4 - Prob. 7.8BFPCh. 7 - Prob. 7.1PCh. 7 - Consider the following types of electromagnetic...Ch. 7 - Prob. 7.3PCh. 7 - In the 17th century, Isaac Newton proposed that...Ch. 7 - Prob. 7.5PCh. 7 - What new idea about light did Einstein use to...Ch. 7 - An AM station broadcasts rock music at “950 on...Ch. 7 - An FM station broadcasts music at 93.5 MHz...Ch. 7 - Prob. 7.9PCh. 7 - An x-ray has a wavelength of 1.3 Å. Calculate the...Ch. 7 - Prob. 7.11PCh. 7 - Prob. 7.12PCh. 7 - Police often monitor traffic with “K-band” radar...Ch. 7 - Covalent bonds in a molecule absorb radiation in...Ch. 7 - Prob. 7.15PCh. 7 - Prob. 7.16PCh. 7 - How is n1 in the Rydberg equation (Equation 7.4)...Ch. 7 - What key assumption of Bohr’s model would a “Solar...Ch. 7 - Prob. 7.19PCh. 7 - Which of these electron transitions correspond to...Ch. 7 - Why couldn’t the Bohr model predict spectra for...Ch. 7 - Prob. 7.22PCh. 7 - Use the Rydberg equation to find the wavelength...Ch. 7 - Prob. 7.24PCh. 7 - Prob. 7.25PCh. 7 - Prob. 7.26PCh. 7 - Prob. 7.27PCh. 7 - Prob. 7.28PCh. 7 - Prob. 7.29PCh. 7 - Prob. 7.30PCh. 7 - Prob. 7.31PCh. 7 - Prob. 7.32PCh. 7 - In addition to continuous radiation, fluorescent...Ch. 7 - Prob. 7.34PCh. 7 - Prob. 7.35PCh. 7 - Prob. 7.36PCh. 7 - Prob. 7.37PCh. 7 - Prob. 7.38PCh. 7 - A 232-lb fullback runs 40 yd at 19.8 ± 0.1...Ch. 7 - Prob. 7.40PCh. 7 - Prob. 7.41PCh. 7 - Prob. 7.42PCh. 7 - Prob. 7.43PCh. 7 - Prob. 7.44PCh. 7 - What physical meaning is attributed to ψ2? Ch. 7 - What does “electron density in a tiny volume of...Ch. 7 - Prob. 7.47PCh. 7 - Prob. 7.48PCh. 7 - How many orbitals in an atom can have each of the...Ch. 7 - Prob. 7.50PCh. 7 - Give all possible ml values for orbitals that have...Ch. 7 - Prob. 7.52PCh. 7 - Prob. 7.53PCh. 7 - Prob. 7.54PCh. 7 - Prob. 7.55PCh. 7 - Prob. 7.56PCh. 7 - Prob. 7.57PCh. 7 - Prob. 7.58PCh. 7 - Prob. 7.59PCh. 7 - Prob. 7.60PCh. 7 - Prob. 7.61PCh. 7 - The quantum-mechanical treatment of the H atom...Ch. 7 - The photoelectric effect is illustrated in a plot...Ch. 7 - Prob. 7.64PCh. 7 - Prob. 7.65PCh. 7 - Prob. 7.66PCh. 7 - Prob. 7.67PCh. 7 - Prob. 7.68PCh. 7 - Prob. 7.69PCh. 7 - Prob. 7.70PCh. 7 - Prob. 7.71PCh. 7 - Prob. 7.72PCh. 7 - Prob. 7.73PCh. 7 - Prob. 7.74PCh. 7 - Use the relative size of the 3s orbital below to...Ch. 7 - Prob. 7.76PCh. 7 - Prob. 7.77PCh. 7 - Enormous numbers of microwave photons are needed...Ch. 7 - Prob. 7.79PCh. 7 - Prob. 7.80PCh. 7 - Prob. 7.81PCh. 7 - Prob. 7.82PCh. 7 - Prob. 7.83PCh. 7 - Prob. 7.84PCh. 7 - For any microscope, the size of the smallest...Ch. 7 - In fireworks, the heat of the reaction of an...Ch. 7 - Prob. 7.87PCh. 7 - Fish-liver oil is a good source of vitamin A,...Ch. 7 - Many calculators use photocells as their energy...Ch. 7 - Prob. 7.90PCh. 7 - Prob. 7.91PCh. 7 - Prob. 7.92PCh. 7 - The flame tests for sodium and potassium are based...Ch. 7 - Prob. 7.94PCh. 7 - Prob. 7.95PCh. 7 - The discharge of phosphate in detergents to the...
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