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In quantum mechanics, an excited state of a system (such as an atom, molecule or nucleus) is any quantum state of the system that has a higher energy than the ground state (that is, more energy than the absolute minimum).
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May 29, 2024 · When an atom absorbs energy, its electrons jump from a lower energy level to a higher one, resulting in an excited state. This concept is crucial in many areas of physics, including quantum mechanics, spectroscopy, and photonics.
Jun 22, 2014 · An excited state is an energy level of an atom, ion, or molecule in which an electron is at a higher energy level than its ground state. An electron is normally in its ground state, the lowest energy state available.
When the electron moves to a higher level, it is called the ‘excited state’. It can move back to the ground state from an excited state by releasing the extra energy. The released energy or the quantum of light can contain electromagnetic wavelengths, which give a colorful appearance.
Jun 26, 2023 · An atom in the excited state is not stable. When it returns back to the ground state (Figure \(\PageIndex{3}\)), it releases the energy that it had previously gained often in the form of electromagnetic radiation (although it can be released via heat).
Feb 28, 2022 · No headers An excited-state atom is an atom in which the total energy of the electrons can be lowered by transferring one or more electrons to different orbitals. That is, in an excited-state atom not all electrons are in the lowest possible energy levels.
When the molecule is in the ground state, both electrons are paired in the lower-energy bonding orbital – this is the Highest Occupied Molecular Orbital (HOMO). The antibonding σ * orbital, in turn, is the Lowest Unoccupied Molecular Orbital (LUMO).
