Ionic and Covalent Bonding

metals and nonmetals

ionic bonds from between...

ionic bond

the attraction between oppositely charged ions

Ionic Compounds

1. Crystalline solids (made of ions) 2. High melting and boiling points 3. Conduct electricity when melted 4. Many soluble in water but not in nonpolar liquid

Covalent Compounds

1. Gases, liquids, or solids (made of molecules) 2. Low melting and boiling points 3. Poor electrical conductors in all phases 4. Many soluble in nonpolar liquids but not in water

Diamond is an example of covalent bond

Carbon bonds to itself, with each carbon atom forming four covalent bonds to four other carbon atoms. This forms one large molecule that is a diamond crystal.

Polar covalent bonding

It is a type of chemical bond where a pair of electrons is unequally shared between two atoms.

Sodium chloride, or NaCl, is an example of an ionic bond.

Sodium has one electron in its outer shell, and chlorine has seven electrons in its outer shell. In this situation an electron will be traded so that the outer shell of the sodium is full with eight electrons.

Nonpolar covalent bonds

They are a type of bond that occurs when two atoms share a pair of electrons with each other

covalent bond

a chemical bond formed when two atoms share electrons

ionic compound

a compound that consists of positive and negative ions

chemical formula

a group of symbols that shows the ratio of elements in a compound

molecule

a neutral group of two or more atoms held together by covalent bonds.

ion

an atom or group of atoms that has become electrically charged

nonmetals only

covalent bonds form between...

The Lewis dot structures can be used to show the bonded atoms in a molecule.

for both covalent and ionic compounds.

chemical bond

the force of attraction that hold two atoms togther