Keywords

Question 1

Silicon Dioxide (silica)

Answer 1

(SiO2) compound found in sand

Question 2

Pure

Answer 2

substance contains only one type of element or compound

Question 3

Particle

Answer 3

Small piece of matter

Question 4

Nanoparticles

Answer 4

Very Small particles, 1-100nm

Question 5

Molten

Answer 5

Liquified by heat

Question 6

Metallic bond

Answer 6

strong attraction between metal ions and delocalised electrons

Question 7

Melting point

Answer 7

temperature at which a substance changes state, solid to liquid

Question 8

Matter

Answer 8

describes material everything is made up of

Question 9

Malleable

Answer 9

Can be hammered into shape

Question 10

Ionic bond

Answer 10

force of attraction between positive and negative ions

Question 11

Intermolecular

Answer 11

Between molecules

Question 12

Graphite

Answer 12

form of carbon, giant covalent structure, conducts electricity

Question 13

Graphene

Answer 13

form of carbon; single layer, one atom thick

Question 14

Fullerene

Answer 14

form of carbon in which carbon atoms are joined together to form hollow structures, e.g. tubes, balls and cages

Question 15

Electrostatic

Answer 15

force of attraction between oppositely charged species

Question 16

Ductile

Answer 16

Can be drawn into a wire

Question 17

Diamond

Answer 17

form of carbon with giant covalent structure, very hard

Question 18

Delocalised

Answer 18

not bound to one atom

Question 19

Covalent bond

Answer 19

shared pair of electrons between atoms in a molecule

Question 20

Corrode/Corrosion

Answer 20

When a metal reacts with oxygen and water .e.g. the rusting of iron

Question 21

Brittle

Answer 21

Breaks easily when hit

Question 22

Boiling point

Answer 22

specific temperature at which a pure substance changes state from liquid to gas

Question 23

Aqueous

Answer 23

Dissolved in water

Question 24

Alloy

Answer 24

mixture that contains at least one metal