Fixed shape / cannot be compressed / fixed arrangement / particles are touching / no movement of particles , only vibrations
1 of 21
Liquids -
Fit shape of container / occupy more space than solids / particles are free to move / movement is random
2 of 21
Gases -
No fixed shape or volume / easily compressed / large space between particles / move at high speeds / random arrangement
3 of 21
Chemicals changing states - energy
Energy used to change temp until at a boiling / melting point where temp stops rising and is used to break chemical bonds
4 of 21
Noble gases -
Group 0 / unreactive
5 of 21
Ionic Bonding -
Metal + non metal / Involves losing and gaining electrons / metal = +ion non metal = -ion / opposite charges of ions lead to attraction to cause no overall charge
6 of 21
Covalent Bonding -
Non metals / Sharing pairs of electrons
7 of 21
Ionic compounds - Properties
Strong forces of attraction between ions / forms lattice structure / require a lot of energy to break bonds / most dissolve in water / conduct electricity in aqueous or molten state
8 of 21
Simple Covalent compounds - Properties
Strong forces of attraction between atoms / weak forces of attraction between molecules / only non metals
9 of 21
Giant Covalent structures -
High MP/BP / insoluble in water / hard / not conductors / covalent bonds form huge structures
10 of 21
Graphite -
3 Carbon bonds / one valence electron - can conduct electricity / weak forces between layers cause them to slide over each other / used as a lubricant
11 of 21
Diamond -
Cannot conduct electricity / 4 carbon bonds / no valence electrons / Very strong bonds
12 of 21
Larger molecule = ...
... higher MP/BP
13 of 21
Fullerines -
Hollow carbon structures / form cylinders, tubes of spheres / High tensile strength / high thermal conductivity
14 of 21
Fullerines - uses
Drug delivery / catalysts / circuit boards / computer chips / single layers = graphene
15 of 21
Metallic bonding -
Each metal atom surrounded by delocalised electrons / electrons move making metals good conductors
16 of 21
Giant metallic structures -
Can be bent and shaped / alloys have irregular atom arrangements / ductile / malleable / conductors
17 of 21
Nanoparticles -
Good SA : V ratio / very reactive
18 of 21
Nanoparticles - Uses
Can be used on windows to break down dirt / UV protection in suncream / cosmetics for better absorbtion / nanowires / kill microorganisms
19 of 21
Nanoparticles - Risks
High reactivity can be dangerous / Could affect cells / negative environmental effects
20 of 21
Nanoparticles - Risks
High reactivity can be dangerous / Could affect cells / negative environmental effects
21 of 21
Other cards in this set
Card 2
Front
Fit shape of container / occupy more space than solids / particles are free to move / movement is random
Back
Liquids -
Card 3
Front
No fixed shape or volume / easily compressed / large space between particles / move at high speeds / random arrangement
Back
Card 4
Front
Energy used to change temp until at a boiling / melting point where temp stops rising and is used to break chemical bonds
Comments
No comments have yet been made