Nodal plane between nuclei Destructive combination leads to antibonding H, molecular orbital. * O is 1s 1s O 1s H atomic orbitals Electron density concentrated between nuclei H2 molecular orbitals Constructive combination leads to bonding H2 molecular orbital. Figure 9.31 The two molecular orbitals of H2, one a bonding MO and one an antibonding MO. Energy +
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.
What is the probability of finding an electron at the nodal
plane in the antibonding orbital?
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