Calculate the Energy, in Joules, Required to Excite a Hydrogen

question 122

Multiple Choice

Calculate the energy, in joules, required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level. Recall that the energy levels of the H atom are given by E_n = -2.18 * 10^-18 J(1/n²)

• A) 2.07 * 10^-29 J
• B) 2.25 * 10^-18 J
• C) 2.04 * 10^-18 J
• D) 3.27 * 10^-17 J
• E) 2.19 * 10⁵ J

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Definitions:

Stereochemical Detail

Information regarding the spatial arrangement of atoms in molecules and its influence on the physical and chemical properties of those molecules.

Stereochemical Detail

Refers to the spatial arrangement of atoms in molecules and how this arrangement affects the chemical properties and reactions of the molecule.

(2R,3S)-2,3-dichloropentane

A specific enantiomer of dichloropentane characterized by its unique three-dimensional arrangement, resulting in distinct optical properties.

Achiral

A term describing a molecule that is superimposable on its mirror image, lacking chirality.