C3 Mistakes PPQ

mixture of metals

• simple molecule • with weak inter molecular forces • that require little energy to over come

• Metals have delocalised electrons • electrons are free to move around • electrons carry a charge

giant ionic

• They can roll over eachother • due to weak intermolecular forces between the nano tubes

• Carbons in graphite bond to 3 carbons • leaves one delocalised electron per carbon • electrons can move through the substance and carry a charge

• Positive ions • In a sea of negative electrons • Giant structure • Regular layers

• From K to S • Each K looses one electron • S gains 2 electrons • K+, S2-

Hexagonal

• Each carbon is covalenty bonded to 3 other carbons • Leaves one delocalised electron per carbon • These delocalised electrons can move through the shape and carry a charge

• Glass is a worse themal insulator • More energy would be transferred to environmnet

• Each Ca looses 2 e- • Each Cl gains 1 e- • 1 Ca reacts with 2 Cl • Ca2+ is formed and Cl-

• thermal energy is transferred • by the delocalised elcetrons

• propene is a small molecule • weak inter molecular forces • which require little engery tp overcome

• delocalised outershell electrons • move around the metal and carry a charge

• strong electrostatic forces between • e- and positive nuclei

• Metals have particles of the same size • which can slide over eachother • the differently sized atoms disrupt the neat rows

don’t loose/gain electrons easily

intermolecular forces • not weak ones

• giant structure • strong electrostatic forces of attrcation • require lots of energy to overcome