Nanoparticles Flashcards
1
Q
What is the equivalent of 1 nanometre
A
1 x 10-9m
2
Q
Why are they so useful
A
. Have a very large surface area compared to their volume, so they are often able to react very quickly.
. Aren’t overly harmful alone.
3
Q
Why can they be bad for you
A
. Could be toxic if inhaled
. Can cause air pollution and damage to the human.
4
Q
What are some uses for nanoparticles
A
Can be used as transparent sunscreen or self-cleaning windows.
5
Q
What are some uses for nanomaterials
A
thin films or surface coatings, as on computer chips
6
Q
Physical properties
A
large surface area
Nanoparticles of yellow gold and gray silicon are red in color
7
Q
Formation of suspensions
A
An important physical property of nanoparticles is their ability to form suspensions.
