Max Lee
-
Solid particles
Particles in a solid are tightly packed and are fixed
-
Liquid particles
Particles in a liquids are close together with gaps and take the shape of the container and the particles can move
-
Gas particles
Particles in a gas are very apart and they move quickly and randomly
-
Mistake with simple solid liquid gas diagram
Assume no force between particle
-
Gaining electron makes element positive or negative?
negative
-
Describe ionic bonding where 1 electron moves
1 electron is passed from x element to y element causing both elements to have full outer shell
-
Ionic bonding
metal with non metal
-
Covalent bonding
non metal with non metal
-
Why do somethings have high boiling point
The strength of the bonds is high so they require more energy to break these.
-
Difference between ionic and covalent bonds
Ionic - transfer electrons
Covalent - share electrons
-
Why do somethings have low boiling point
Weak intermolecular bonds so they require low energy to break
-
Why do giant covalent substance have high boiling melting point
Millions of bonds require high energy to break
-
diamond made from..
carbon
-
Delocalised electrons can do what? and why?
move as they aren't bound to an atom
-
graphite is a good conductor of ?? and why??
electricity and heat as they have delocalised electrons
-
2 uses for fullerene
Lubricant and catalyst
-
property of metals and why
bent and shaped cuz the layers of atoms can slide over each other
