C3///2 Flashcards
What is diamond a form of
Carbon with covalent structures
Does diamond conduct electricity
No
How many bonds does each carbon atom form in diamond
4
What are internolecular forces like between layers of graphite in
Weak
What are the properties of graphite
Soft slippery and can conduct
What is a fullerene
A structure where carbon atoms form to make large hollow shapes
What are fullerene used for
Drug delivery
Lubricants
What do carbon nanotubes have
High tensile strength
Can fullerenes conduct
Yes
What does metallic bonding produce
A lattice of positive ions in a sea of moving electrons
What can metals do
Layers of atom can slide over eachother so can bend and be shaped
What is an alloy
mixture of metals
Why are alloys strong
The different sized atoms distort the regular pattern of atoms so the cannot slide over each other
What is nanotechnology
Science that deals with particles 1-100 manometers
Why are nano particles reactive
High surface area to volume ratio and most of there atoms are near the surface
What are nanoparticles used for
Sun cream
Deodorant
Medicine
What are the uses of silver nanoparticles
Help protect against bacteria so they are used in woud dressings
What is an allotrope
Different structural forms of the same element in the same state
What’s bigger, a course particle or a fine particle
Coarse particles
What gives an element the ability to conduct
Delocalised electrons
Give two possible risks of nanoparticles
-breathing in these could damage the lungs
-could affect aquatic life
