Bonding
Ionic Bond
Cannot conduct electricity in solid form ; Can conduct electricity in liquid form
Cannot conduct : The ions are not free to move about
Can conduct : The ions are free to move about
Soluble in water
High melting and boiling points
Structure of Ionic Compounds
Arranged in giant lattice structure or crystal lattice
Form giant ionic structures
Compounds that contain ionic bonds are called ionic compounds
Examples?
Sodium Chloride
Magnesium Fluoride
Attracted to both elements by electrostatic attraction
Formed between Metals and Non-Metals
May also known as electrovalent bond
Covalent Bond
Physical properties
Cannot conduct electricity
Do not have free-moving ions or electrons to conduct electricity
Insoluble in water
Low melting and boiling points
Very little heat energy is required to overcome the intermolecular forces.
Molecules of Compounds
Molecules made up of two or more different types of atoms linked together by covalent bonding are called molecular compounds or covalent compounds.
Molecules of Elements
A double bond is formed when two pairs of electrons are shared between two atoms.
Sharing of two electrons forms a single covalent bond
Introduction
A molecule is a group of two or more atoms held together by covalent bonds.
Molecules are formed when atoms combine
Formed between atoms that share electrons is called a covalent bond
