The Frequency of Electromagnetic Radiation Required to Promote an Electron

question 37

Multiple Choice

The frequency of electromagnetic radiation required to promote an electron from n = 2 to n = 4 in a Bohr hydrogen atom is Hz.

• A) 6.2 × 10¹⁴
• B) 4.1 × 10^{- 19}
• C) 8.2 × 10¹⁴
• D) 4.1 × 10¹⁹
• E) 5.4 × 10^{- 19}

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Definitions:

2-Methyloctan-3-Ol

A chemical compound, specifically an alcohol, that is derived by adding a methyl group and a hydroxyl group to an octane chain.

Hydroboration/Oxidation

A two-step organic reaction that converts alkenes into alcohols through a hydroboration step followed by oxidation.

Aqueous Acid

An acid that is dissolved in water, producing hydrogen ions and leading to a pH less than 7.

Approximate Pka

An estimate of the acid dissociation constant, which measures the strength of an acid in solution.