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speed of electrons varies from shell to shell . it increases from inner orbit to outer orbit
Atoms in Group 1, also known as alkali metals, typically have one less electron than a full outer orbit. These elements have one electron in their outermost shell, making them highly reactive and likely to lose that electron to achieve a more stable, full outer shell configuration.
In atoms. More specifically, they orbit the nucleus of an atom, in the aptly name electron cloud. Or electron shell.
Hydrogen and Helium
Orbital x ray
these atoms offer the least amount of resistance for knocking the valence electron out of its orbit.
Electron shells fill in the order 2, 8, 18, 18, 32, 32
Usually the valence shell - but that can be the S-orbital too.
A valance electron is one that is associated with an atom. The valence orbit is the one that electron travels in.
The orbit or electron shell closest to the nucleus is the 1s sub-shell. It can hold 2 electrons before the 2s sub-shell is filled. H and He have their electrons in this shell (the 1s)
The shell is the principle energy level, and is defined as 1, 2, 3, etc. (or K, L, M, etc). An orbital is the spacial orientation of the orbit, such as px, py, pz, where the orbit is a p orbit, and the orbital is the x, y, or z orientation of that orbit. This is a mathematical expression of where the electron is most likely to be found. The electron cloud is more of a visual representation of the electrons surrounding the nucleus, and is based on the electron orbitals.
The electron outside the shell donate its electron to the one inside the shell