What Is the Energy of an Incident Photon That Is

question 1

Multiple Choice

What is the energy of an incident photon that is just enough to excite a hydrogen atom from its ground state to its n = 4 state?

• A) 12.75 eV
• B) 10.20 eV
• C) 3.40 eV
• D) 0.85 eV

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Definitions:

Amino Group

A functional group consisting of a nitrogen atom attached by single bonds to hydrogen atoms, alkyl groups, or aryl groups.

Amino Acid

Organic compounds containing an amine group, a carboxylic acid group, and a side chain that varies between different amino acids, key building blocks of proteins.

Aspartic Acid

One of the 20 common amino acids in proteins, with a carboxylate side chain, making it acidic and polar.

Succinic Acid

A dicarboxylic acid with the chemical formula C4H6O4, used in the manufacture of pharmaceuticals, food additives, and biodegradable polymers.