Electrons orbit the nucleus of an atom. The exact location of a specific electron, however, can not be known for certain. The general area where the electron might be found is in its orbital.
electrons orbit around the nucleus
Voltage is a build up of electrons at one location relative to another location. To form a voltage gradient (difference), you need to somehow build up electrons at one location, or remove electrons from one location. Shuffling your feet on a thick carpet can do this!
The charge on electrons is equal to -1.6 X 10-19 C. According to Heisenberg's uncertainty principle, we cannot have the exact location of an electron, only we can have the region where the probability of finding an electron is high.
Valence electrons are those that are in the outermost shell of the atom.
Valence Electrons are the outermost electrons in an element and they are used for bonding with other elements.
Neutrons and protons are placed in the atomic nucleus; electrons move surrounding this nucleus in clouds of electrons.
the orbital in which the electrons are added and the number of valence electrons
As single elementary particles all electrons are identical; but in atoms electrons have different energy and location. The speed of electrons is also different in diverse applications.
use the quantum theory
a proton
They have the same number of valence electrons
In a covalent bond, electrons are shared between two atoms and are located in the overlapping region of the orbitals of the bonded atoms. This shared electron density creates a bond that holds the atoms together.