Forces that hold two or more atoms together.
Atoms with high potential energy are more excited, making them more likely to form chemical bonds, while atoms with a lower potential energy are less excited and more stable, making them less likely to form chemical bonds.
Ionic bonds are chemical bonds between a metal and a nonmetal.
Ionic bonds are formed by electron transfer from metal to nonmetal.
Can conduct electricity as a liquid.
An example of this kind of bond would be Salt (NaCl).
Covalent bonds are chemical bonds between two nonmetals.
There is two different types of Covalent bonds, Polar and Non-Polar.
Never conduct electricity.
An example would be Carbon Dioxide.
Polar Covalent bonds are chemical bonds between two atoms with a significant difference between their electronegativity values.
Non-Polar bonds are chemical bonds between two atoms with a small difference between their electronegativity values.
Metallic bonds are chemical bonds between two metals.
In this type of bond, electrons move freely, because they are de-localized.
Can conduct as a solid.
An example of this would be all elements in the d block (Fe, Au, Cu, etc.).
The octet rule :
Atoms wish to achieve stability by sustaining a total of 8 valence electrons, with the exception of Boron, which only needs 6 valence electrons.