Nanoparticles Flashcards
1
Q
1mm = ?m (standard form)
A
1x10*-3
2
Q
1 micrometer = ?m (standard form)
A
1x10*-6
3
Q
1 nanometre = ? metre (standard form )
A
1x10*-9
4
Q
What is the diameter of a nano particle?
A
1-100 nano meters.
5
Q
How many atoms can nano particles contain?
A
Only a few hundred atoms.
6
Q
What surface area to volume ratio do nano particles have?
A
A large surface area to volume ratio.
7
Q
What are the uses of nano particles?
A
Medicines, suncreams, cosmetics, deodorants, electronics and catalysts.
8
Q
What are the risks of nano particles?
A
They can be absorbed into the body and enter cells.
