Bonding help please!!!

How the bloody hell am I supposed to know whether to talk about bonds (metallic, ionic etc) or IMF's?! I would mention both however the god damn mark scheme says mentioning the wrong one counts as a chemical error :cry:

Reply 1

Borek

4

Do you have molecules in metal?

Do you have molecules in ionic crystal?

Reply 2

ccalby

Bonds and IMF are completely different.

Bonds are between atoms. EG: Water has 2 bonds. Both are from the O atom to the H atoms.
Intermolecular forces exist between molecules. This means WATER molecules have attractions between one another. (NOTE: WATER! Not atoms! The molecule as a whole is attracted).

Remember: INTERmolecular. BETWEEN molecules.
Bonds: Between atoms.

InterMOLECULAR forces do not exist in metallic or ionic bonded structures. Why? Because they are not MOLECULES. Remember: Molecules involve covalent bonds :smile:

Sorry for the caps. Just trying to empathize to help you :smile:

(edited 9 years ago)

Reply 3

Borek

4

Original post by ccalby

Bonds and IMF are completely different.

Bonds are between atoms. EG: Water has 2 bonds. Both are from the O atom to the H atoms.
Intermolecular forces exist between molecules. This means WATER molecules have attractions between one another. (NOTE: WATER! Not atoms! The molecule as a whole is attracted).

So, where does the hydrogen bond fits into this scheme? It bonds molecules, yet it is located on atoms.

Reply 4

Sena5

20

Metallic bonding is only when you talk for metals
Ionic bonding takes place between a metal and non-metal.
Covalent bonding takes place between two non-metals