Development of the Modern Freezer. Bacteria are usually the cause of food decay, but they can't grow as well or at all in freezing temperatures, which are at 32 degrees Fahrenheit (0 degrees Celsius) or lower.
HF- polar molecule: dipole-dipole forces. There are also dispersion forces and H bond between HF. BF3- nonpolar: dispersion forces. Ar- Dispersion forces between Ar atoms.
Intramolecular forces: An intramolecular force is the force that holds the atoms or ions together in a compound. These forces are stronger than intermolecular forces. Intramolecular forces are categorized into three types. 1. Metallic bonding. 2. Ionic bonding. 3. Covalent bonding. Metallic bonding: This type of bonding is formed when metal atoms share delocalized electrons.