Quantum chemistry
Quantum Chemistry
Quantum Chemistry (pronounced: /ˈkwɒntəm ˈkɛmɪstri/), also known as molecular quantum mechanics, is a branch of chemistry that focuses on the application of quantum mechanics to chemical systems.
Etymology
The term "Quantum" is derived from the Latin word "quantus", meaning "how much". It refers to the discrete units of matter and energy that are predicted by and observed in quantum physics. "Chemistry", from the Greek word "χημεία" meaning "cast together", is the science of matter and the changes it undergoes during chemical reactions.
Definition
Quantum Chemistry is a subfield of chemistry focused on the principles of quantum mechanics and their applications to chemical phenomena. It involves the use of quantum mechanics to describe the behavior of electrons in atoms and molecules, and is essential for understanding the structure of molecules, the forces between them, and how they behave in chemical reactions.
Related Terms
- Quantum Mechanics: The branch of physics dealing with the quantum phenomena.
- Chemical Reaction: A process that leads to the transformation of one set of chemical substances to another.
- Molecule: The smallest particle in a chemical element or compound that has the chemical properties of that element or compound.
- Atom: The basic unit of a chemical element, and the smallest unit of matter that retains the properties of an element.
- Electron: A subatomic particle that carries a negative electric charge.
See Also
External links
- Medical encyclopedia article on Quantum chemistry
- Wikipedia's article - Quantum chemistry
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