There are 3 different types of bonds. There are ionic bonds, covalent bonds, and metallic bonds.
In ionic bonds an atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion. An example is magnesium oxide. There are two different types of ionic bonds. They are cations and anions. A cation is an atom or group of atoms with a positive charge. An anion is any amtom or group of itoms that a have negative charge. Some characteristic of ionic bonds are: they have high melting points, they can conduct electricty, they dissolve in water, and they have well defined crystals. They attract by electrostatic forces. Usually ionic bonds are metals. The next type of bond is Covalent bonds. Covalent bonds share a pair of elctrons between atoms in a molecule (non-metals). An example is hydrogen chloride. There is one type of covalent bonding and it is polar covalent. Polar covalent simply means its a chemical bond that unequally shares electrons but one side is positive while the other is negative. An example of this is water. Some characteristics of covalent bonds are: they are neutral, do not conduct electricty, and low melting and boiling points. The next type of bonding is a metallic bond. A metallic bond is a chemical bond in which electrons are shared over many nuclei and electronic conduction occurs. An example is copper.