DEFINE ION BONDING FREE

Valence energy levels correspond to the principal quantum numbers (n = 1, 2, 3, 4, 5. When an electron loses energy (thereby causing a photon to be emitted), then it can move to an inner shell which is not fully occupied.

DEFINE ION BONDING FREE

Or the electron can even break free from its associated atom's valence shell this is ionization to form a positive ion. An energy gain can trigger an electron to move (jump) to an outer shell this is known as atomic excitation. Similar to an electron in an inner shell, a valence electron has the ability to absorb or release energy in the form of a photon. Furthermore, they have tendency to gain electrons to have a complete shell (thereby forming a negative ion), or to share valence electrons (thereby forming a covalent bond). It requires relatively low energy to remove the extra valence electrons to form a positive ion. Atoms with one or two less valence electrons are highly reactive because a low amount of energy is needed to remove the extra electron. Whether an element is the source of the cation or anion in an ionic bond depends on several factors, for which the periodic table can serve as a guide.Īn atom with a complete shell of valence electrons (corresponding to 8 electrons) tends to be chemically inert. Because of their opposite charges, cations and anions attract each other and readily form ionic compounds. A cation is a positively charged ion, with fewer electrons than protons, while an anion is negatively charged, with more electrons than protons. Since the charge of the electron (considered 'negative' by convention) is equal and opposite to that of the proton (considered 'positive' by convention), the net charge of an ion is non-zero due to its total number of electrons being unequal to its total number of protons. An ion is an atom that has a non-zero net electrical charge.īy convention the charge of an electron is considered negative and it is opposite to the proton charge that is considered positive.

One type of chemical bond, called an ionic bond, is the force of attraction between oppositely charged species (ions). When atoms combine to each other they create a chemical bond mainly driven by the attractive force between atoms. Ionic Bonding - Characteristics & Summary Introduction: Solid materials with ionic bonds are hard, good insulators, transparent, rigid and with high melting point.Elements at the right of the periodic table tend to gain electrons to reach the electron configuration of the next higher noble gas.Whether an element is going to be the cation or anion in an ionic bond depends on several factors, the periodic table can serve as a guide.An ion is an atom that has a non-zero net electrical charge.Ionic bond, is the force of attraction between oppositely charged species (ions).Here are examples of ionic bonds and ionic compounds:.Ionic Bonding – Characteristics & Summary Introduction:.

Define ion bonding