answersLogoWhite

0

A valence electron is an electron in the outer shell (or cloud or orbital as it is sometimes referred) farthest away from the nucleus. These are the electrons that are transferred or shared in chemical bonding. (A "full" outer shell refers to atoms with (usually) 8 electrons in its outer shell.)

User Avatar

Wiki User

10y ago

What else can I help you with?

Continue Learning about Chemistry

How many electrons does Ba has?

Valence electrons are electrons that are on the outside "shell." In Group (column) 1, there is only one valence electrons for each element. In Group (column) 2, there are two valence electrons. Group 13: 3 valence electrons Group 14: 4 valence electrons Group 15: 5 valence electrons Group 16: 6 valence electrons Group 17: 7 valence electrons Group 18: 8 valence electrons There is no Group 19, so this list is done. For the metals, each element will need to be mapped out utilizing the Bohr Diagram design or something of the like as valence electrons are difficult to define due to the grouping on the periodic table. The most valence electrons that can be in an outer shell is eight. Barium (Ba) is in Group (column) 2, and thus has only two valence electrons.


Define ionization energy of an element?

Ionization energy is the amount of energy required to remove one electron from a neutral atom in the gaseous state. It is a measure of how tightly the electron is held by the nucleus of the atom. Elements with higher ionization energies require more energy to remove an electron and are less likely to form ions.


What is the significance of the boundary of an electron cloud?

The boundary of an electron cloud represents the region where there is a high probability of finding an electron. It helps define the size and shape of the atom or molecule, influencing its chemical properties and interactions with other atoms. The boundary also signifies the extent of the electron's influence on the surrounding environment.


How does Lewis define acids and bases?

Lewis defined acids as substances that are electron pair acceptors, and bases as substances that are electron pair donors. According to Lewis, acids and bases react by sharing an electron pair to form coordinate covalent bonds.


How many valence electrons does magnisium oxide have?

MgOMagnesium: 2 Valance Electrons (Charge is +2)Oxide: 6 Valance Electrons (Charge is -2)Hint: Oxide has a charge of -2 and so does Oxygen. Check the periodic table for the elements that have a -2 charge (group 16) and you will find oxygen as the first element in that group. Periods define how many energy levels the element has, just so you know. Oh and this is ionic.Hope this helps!

Related Questions

Define free radical?

a group of atoms ith an unpaire electron


1 Why you define Fermi level for semiconductor junction diodes?

Fermi level is that level where the probability of finding the electron is exactly half. it lies between the conduction and the valence band.. its helps in formation of extrinsic substance... also in finding the good recombination agent for a different combination's it is also used in various calculations and determining probability of finding electron


Define negative charge without using mass of electron?

Mass and charge are not connected. Negative charge is the charge carried by an electron.


Define electron repulsion?

Its actually electron pair repulsion. Its the principle that electron pairs around a central atom tend to orient themselves as far apart as possible. Electron pair repulsion is used to predict the geometry of a molecule or a polyatomic ion.


Define Polarizability What is polarizability?

It is a measure of how easily an electron cloud is distorted by an electric field. Electron cloud will belong to atom, molecule or Ion. It is the quantitative measurement of the extent to which the electronic cloud can be polarized


What are the different areas of an electron cloud called?

The different areas of an electron cloud are called electron orbitals. These orbitals define the regions in an atom where electrons are most likely to be found. They are categorized by different shapes and energies based on quantum mechanics.


How many electrons does Ba has?

Valence electrons are electrons that are on the outside "shell." In Group (column) 1, there is only one valence electrons for each element. In Group (column) 2, there are two valence electrons. Group 13: 3 valence electrons Group 14: 4 valence electrons Group 15: 5 valence electrons Group 16: 6 valence electrons Group 17: 7 valence electrons Group 18: 8 valence electrons There is no Group 19, so this list is done. For the metals, each element will need to be mapped out utilizing the Bohr Diagram design or something of the like as valence electrons are difficult to define due to the grouping on the periodic table. The most valence electrons that can be in an outer shell is eight. Barium (Ba) is in Group (column) 2, and thus has only two valence electrons.


Do quantum numbers define the energy states and the orbitals available to an electron?

Yes, quantum numbers define the energy states and the orbitals available to an electron. The principal quantum number (n) determines the energy level or shell of an electron, the azimuthal quantum number (l) determines the shape or orbital type, the magnetic quantum number (m) determines the orientation of the orbital, and the spin quantum number (+1/2 or -1/2) determines the spin state of the electron. Together, these quantum numbers provide a complete description of the electron's state within an atom.


What the smallest particle in a atom?

Size on the scale of atoms is very hard to define. The electron has zero mass. Quarks have varying amounts of mass.


Define ionization energy of an element?

Ionization energy is the amount of energy required to remove one electron from a neutral atom in the gaseous state. It is a measure of how tightly the electron is held by the nucleus of the atom. Elements with higher ionization energies require more energy to remove an electron and are less likely to form ions.


What is the significance of the boundary of an electron cloud?

The boundary of an electron cloud represents the region where there is a high probability of finding an electron. It helps define the size and shape of the atom or molecule, influencing its chemical properties and interactions with other atoms. The boundary also signifies the extent of the electron's influence on the surrounding environment.


Define electron volt?

An electron volt (eV) is a unit of energy equal to the energy gained by an electron as it moves through a potential difference of one volt. It is commonly used in atomic and subatomic physics to describe the energy of particles at the atomic and molecular scale.