In general, ionic compounds occur when a metal ion and a nonmetal ion make a compound. When they are a compound, electron(s) are transferred. Ionic compounds will generally conduct electricity as a solution, are brittle, hard, and tend to have high melting and boiling points.
Covalently bonded compounds are generally nonmetal atoms that become a compound, and when they are a compound, they share electron(s). Covalent compounds have low melting points and are poor conductors of electricity (however, an example of something that defies this description is graphite, which is a carbon allotrope that conducts electricity due to electron delocalization).
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It is erroneous to say that metal/nonmetal bonds are always ionic, in fact, there are no 100% ionic bonds. Bonding lies along a continuum between 100% covalent and bonds which have a high percent ionic character, but even those have some covalent character as well.
You are better off distinguishing between compounds which exist as networks or lattices and compounds which exist as discrete molecules. Compounds which exist as networks include salts with highly polar bonds, like NaCl, and compounds with high covalent character, like SiO2. These are the ones with high melting points. Diamond and quartz have very high melting points and are very hard and both have very covalent bonds.
Statements like the one above are vast oversimplifications riddled with misconceptions.
Covalent compounds are more flammable when compared to ionic compounds.
Ionic compounds are more soluble in water than covalent compounds.
Ionic compounds are formed when there is transfer of electron, resulting in the formation of a charge. For example, Sodium (metal) and chlorine(Non metal) react to form Sodium Chloride, which is an ionic compound. In this formation, what actually happens is, Sodium (Having 1 electron in the last orbit) has to lose 1 electron for a noble gas configuration( Stable configuration) and Chlorine(having 7 electron in the last orbit) requires 1 electron for a stable configuration. So, Sodium gives away the extra electron to Chlorine and forms sodium chloride where sodium (Na) has a +ve charge (As it loses an electron) and chlorine has a -ve charge (as it gains an electron)
Thus an ionic compound is formed when there is an actual transfer of electrons between the reactants to attain a stable configuration.
A covalent compound is formed by the sharing of electrons. As there is no actual transfer of electrons, there is no charge.
For example, Methane (CH4) is a covalent compound. as carbon as four valence electrons, it can't gain or lose 4 electrons because : 1. If it gains 4 electrons, then it will be difficult for four protons to hold onto 8 electron,
2. If it loses four electrons then, there won't be any electron and four protons cannot manage. i.e., there won't be stability.
So, Carbon can only share four electrons and Hydrogen has one valence electron in the last orbit. Hence, in Methane, the four valencies of Carbon is satisfied by 4 hydrogen atoms giving rise to the covalent compound (CH4).
thus, covalent compounds are formed by the sharing of electrons by covalent bonds between elements.
an ionic compound is formed by loss and gain of electrons while a coalent compound is formed by mutual sharing of electrons
Compounds with covalent bonds form molecules. Compounds with ionic bonds form ionic lattices.
Ionic compounds contain ionic compounds whereas molecular compounds contain covalent bonds in their molecules.
ionic compounds split into individual ions were as covalent compounds dissolves and is surrounded by water molecules
An ionic bond is when one or more electrons are transfered from one atom to another. A covalent bond is when atoms share one or more electrons. The atom Hydrogen would need only 2 electrons but most need 8.
Nigger
Compounds with covalent bonds form molecules. Compounds with ionic bonds form ionic lattices.
Covalent compounds are more flammable when compared to ionic compounds.Ionic compounds are more soluble in water than covalent compounds.for more go to: difference between . net
Ionic compounds contain ionic compounds whereas molecular compounds contain covalent bonds in their molecules.
ionic compounds split into individual ions were as covalent compounds dissolves and is surrounded by water molecules
An ionic bond is when one or more electrons are transfered from one atom to another. A covalent bond is when atoms share one or more electrons. The atom Hydrogen would need only 2 electrons but most need 8.
Nigger
Ionic Compounds are formed by complete transfer of electrons while Covalent compounds are formed by sharing of electrons. Ionic compounds have higher melting points while covalent compounds have lower.
If you are looking at a chemical bond between two elements, simply find the difference between their electronegativities (simply google a periodic table that includes electronegativity to find an element's electronegativity). So for instance, in: Pottasium + Flouride Flouride has an electronegativity of about 4.0, and Potassium has an electronegativity of about 0.8. 4.0 - 0.8 = 3.2 if the difference is from 0.0 to 0.3, the bonds are non-polar Covalent. if the difference is from 0.3 to 1.7, the bonds are polar Covalent. if the difference is from 1.7 upwards, the bonds are Ionic.
covalent compounds --------- It is inadequate to discuss about a telephone in terms of ionic and covalent compounds.
Types of bonding: ionic (in salts), covalent (in organic compounds), metallic (in metals).
Living things are made up of both ionic and covalent compounds.
Calcium fluoride is an example of an ionic compound, not a covalent compound. Covalent compounds form between two nonmetals, while ionic compounds form between a metal and a nonmetal.