Hydrogen H₂ is a diatomic molecule composed of two hydrogen atoms. (Figure 1) is an energy diagram for hydrogen as a function of the atomic separation . Figure Energy (X 10-19 J) 8 4 0 -4 -8 0 0.10 0.20 1 of 1 -x (nm) 0.30 ▼ Part A What is the minimum light-photon energy that can dissociate a hydrogen molecule? Express your answer to one significant figure and include the appropriate units. E = Submit O μÅ Value Provide Feedback Request Answer Review | Constants | Periodic Table Units ? Next

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Electronic Transitions and Spectroscopy

The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.

Photoelectron Spectroscopy

Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.