Search results
- Dictionaryen·er·gy lev·el
noun
- 1. the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
Powered by Oxford Dictionaries
A quantum mechanical system or particle that is bound—that is, confined spatially—can only take on certain discrete values of energy, called energy levels. This contrasts with classical particles, which can have any amount of energy.
energy level, in physics, any discrete value from a set of values of total energy for a subatomic particle confined by a force to a limited space or for a system of such particles, such as an atom or a nucleus.
- The Editors of Encyclopaedia Britannica
Sep 20, 2022 · What Are Energy Levels? Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. Electrons are tiny, negatively charged particles in an atom that move around the positive nucleus at the center. Energy levels are a little like the steps of a staircase.
Dec 28, 2020 · Energy levels are energy values that an electron in an atom can have or occupy. The lowest energy state or energy level is called the ground state. Since the electrons are attracted to the positively charged protons in the nucleus, they will generally fill the lower energy levels first.
Jun 20, 2024 · The meaning of ENERGY LEVEL is one of the stable states of constant energy that may be assumed by a physical system —used especially of the quantum states of electrons in atoms and of nuclei—called also energy state.
We like representing these energy levels with an energy level diagram. The energy level diagram gives us a way to show what energy the electron has without having to draw an atom with a bunch of circles all the time. Let's say our pretend atom has electron energy levels of zero eV, four eV, six eV, and seven eV.
Different orbits in which electrons revolve are called energy levels or stationary states. These stationary energy/state levels for an electron are denoted as n= 1, 2, 3….. These numbers are also called the principal quantum numbers.
