In a practical, simplified sense it is the orbital "shell" that an electron can occupy (quantum theory contends that electrons cannot occupy just any old space around a nucleus, but is restricted to specific "levels", "volumes" or "shells"). More general information is in the article in the link below.
When you move an electron in an atom from a lower energy level to a higher energy level, it is called an electron excitation. This process requires the electron to absorb energy to move to a higher energy state.
An energy level
There are 2 energy levels in a Carbon atom. The first energy level consists of '1s' orbital, and the second energy level consists of the '2s' orbital and the '2p' orbital.
The maximum number of electrons in the second energy level of an atom is 8.
In the Bohr model of the hydrogen atom, the electron is assumed to orbit the nucleus in discrete energy levels. The ionization energy of the hydrogen atom corresponds to the energy required to completely remove the electron from its orbit, moving it from its lowest energy level to an unbound state. This energy depends on the specific energy level the electron is in, as each energy level has a corresponding ionization energy.
When you move an electron in an atom from a lower energy level to a higher energy level, it is called an electron excitation. This process requires the electron to absorb energy to move to a higher energy state.
A boron atom has three electrons in its second energy level.
An atom has multiple energy levels. When an atom has more electrons than it can fit into an energy level, then it puts them into the next higher energy level.
An electron in an atom can lose energy to transition from a higher energy level to a lower energy level by emitting a photon of light. This process is known as emission.
Depends upon the atom and element, some have an energy level of 0 and it can be +/- for others depending on the number of protons or electrons in said atom.
An argon atom has 2 electrons in its first energy level, 8 electrons in its second energy level, and 8 electrons in its third energy level.
A neutral atom of magnesium has 2 electrons in its outermost energy level. Magnesium has a total of 12 electrons, with 2 electrons in the first energy level and 8 electrons in the second energy level. The outermost energy level is the second energy level in the case of magnesium.
An atom with seven electrons will have five electrons in the second energy level.
Xenon has multiple energy levels associated with its electron configuration. The energy level of an atom is typically determined by the arrangement of electrons in its electron shells. Depending on the state of the xenon atom (neutral, ionized, excited, etc.), its energy level can vary.
There are 8 electrons in the third energy level of a calcium atom.
The energy state of an atom refers to the specific energy level that an electron occupies around the nucleus. Electrons can exist in different energy states, or orbitals, depending on the amount of energy they possess. The energy state of an atom is fundamental in determining its chemical and physical properties.
An atom in which an electron has moved to a higher energy level is in an excited state. This can happen when the electron absorbs energy from its surroundings, such as from light or heat. The electron will eventually return to its original energy level, releasing the absorbed energy as light.