which bond is stronger? a metallic bond or an ionic one?

Question

can anyone tell me why?

can anyone tell me why? and are metallic bonds considered as a type of chemical bond?

Answer 1

An ionic bond and a metallic bond are similar in that they are based on electrostatic interactions, as opposed to covalent bonds.

Bond strength is usually measured in the amount of energy that is needed to break the bond. One good measure is to ask how much thermal energy (heat) is needed to break the bond or what temperature is needed to break the bond.

Metals like tungsten, rhenium and osmium melt at temps greater than 3000 C, while sodium and potassium melt at less than 100 C, gallium and mercury are liquids at or near room temperatures.

Most ionic substances, which are composed on bonds with a high degree of ionic character are refractory, and remain solid at temps over 2000 C. Even non refractories (e.g. NaCl) melt higher relative to their parent metals.

Also, most metals are reactive to some degree (even gold and platinum) while most ionic substances are much more inert.

Given the trend of generally higher melting points and chemical inertness, I would say an ionic bond is generally "stronger", but this is not a hard and fast rule.

And to answer your last question, metallic bonds exist only in elemental metals. The fact that the electrons are delocalized in metallic elements is what gives metals the properties of conductivity, ductility etc. But since these bonds keep like metallic nuclei in close proximity to one another, they are considered a type of chemical bond.

Answer 2

Ionic bonding is a type of electrostatic interaction between atoms which have an electronegativity difference of over 1.6 (this limit is a convention). These form in a solution between two ions after the excess of the solvent is removed. The strongest form of chemical bond is the ionic bond between two ions of opposite charges, and such high energies are responsible for the stability and high melting points of ionic crystals ("salts"). Ionic charges are commonly between -3e to +7e

A metallic bond, as an ionic bond (strictly), exists only in a solid (or liquid) state. In a metallic bond, there are delocalized electrons in a lattice of atoms. By contrast, in ionic compounds, the locations of the binding electrons and their charges are quite static.

Answer 3

Metallic bonds are obviously much strounger than ionic bonds. Ionic bonds are notoriously weak because they do not actually share electrons, but instead rely on small electronegative differences. The textbook ionic compound NaCl (table salt), for example, is dissolved in water. Comparitivley, the properties of metals would suggest that their bonds are not so easy to break. In this sense, the metallic bond is closer to the common covelant bond that shares electrons. Metallic bonds have been described as "Positive ions in a sea of electrons", which is a picture that gives metals the property of strong bonds yet freely moving electrons (which are necessary for such properties as conductivity).

Answer 4

Metallic bond is much stronger ... thtz why metals are comparatively more stronger than compounds due to presence of metallic bonds................

Answer 5

first of all there is no such thing as mettalic! Its only ionic or covalent bond! An ionic bond transfer elctron and covalent share electrons

Answer 6

ionic