0
What property describes how much energy must be added to an atom to remove an outermost electron?
Wiki User
∙ 7y ago
The process is absorption of a photon. When energy like this is added to the system, if enough is added, then an electron can be ejected from the atom. The relevant theory involved with this is called 'band-gap' theory. Electrons are Fermions and as such obey the Pauli exclusion principle. This demands that no two electrons can occupy the same quantum state. Energy is quantised and therefore electrons can only take distinct energy levels at each orbital around an atom. The orbitals close to the nucleus are most tightly bound which means they must be given a tremendous energy to leave the atom. But if all the available slots in a particular orbital are filled, then an electron bound to the atom must occupy the next orbital further out. When all but the outer shell is filled, the only place for an electron attached to the atom is in this outer shell. In some atoms these electrons can be given enough energy by a photon to leave the atom and they do so because there are no further orbitals to occupy. In Silicon, this band-gap is 1.1 electron-volts. The figure varies by material.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
How many valance electrons are there in Fr plus?
Fr is in the 1st period. It removes an electron to get noble gas configuration. Fr+ does not have valence electrons.Francium has 1 electron in its outermost energy level. It donates its outermost electron to stabilize its electron configuration. Francium(I) has no valence electrons.
Valence electron are found in what energy level?
Valence electrons are the electrons in the outermost energy level.
Which electron in an atom are the valence electrons?
The valence electrons are the outermost electrons, i.e. those that reside in the outermost energy level.
What electron would require the least amount of energy to remove from the atom of sulfur?
This is an electron situated on the outermost level.
What describes the energy possessed by electrons?
The energy of electrons is expressed in eV (electron volts).
An electron in the outermost energy level of an atom is a?
The outermost electrons are called VALENCE electrons.
What is the name of the group with only one electron in their outermost energy level?
name the group of elements that have only one electron in their outermost energy level
If electrons have the most energy in an atom electrons in an electron cloud electrons in the outermost electron shell electrons in the innermost electron shell electrons in the nucleus?
Electrons in the outermost energy shell (valence shell) have the most energy.
What is an electron in the outermost energy level of an atom?
An electron in the outermost energy level of an atom is called a valence electron.(We refer here to the outermost occupied levels of an atom. There are, of course, many other higher energy levels normally available that are not occupied.)These electrons determine the chemical reactivity of the atom.the valence electrons
What are the electron on the outermost energy level?
These are called valence electrons.
How many valance electrons are there in Fr plus?
Fr is in the 1st period. It removes an electron to get noble gas configuration. Fr+ does not have valence electrons.Francium has 1 electron in its outermost energy level. It donates its outermost electron to stabilize its electron configuration. Francium(I) has no valence electrons.
What best defines the ionization energy of an element?
The amount of energy needed to remove the outermost electron.
Valence electron are found in what energy level?
Valence electrons are the electrons in the outermost energy level.
Which electron in an atom are the valence electrons?
The valence electrons are the outermost electrons, i.e. those that reside in the outermost energy level.
How many outer levels does Cesium have?
One electron in outermost energy level.
What electron would require the least amount of energy to remove from the atom of sulfur?
This is an electron situated on the outermost level.
What phrases describes how the position of an electron relates to its energy?
The farther an electron is from the nucleus, the greater its energy.
