nanoparticles anf flame tests Flashcards
1
Q
what are nanoparticles
A
are structures that are 1-100nm in size and contain a few 100 atoms
2
Q
whats the benefits of nanoparticles in sun screen
A
better coverage
more effective protection
3
Q
whats the benefits of silver nanoparticles
A
kills bacteria
used to sterilise equipment in hospitals
4
Q
What’s the risk of nanoparticles
A
may be able to enter human skin cells
harmful effects to the environment
5
Q
what colour does lithum go on the flame test
A
crimson
6
Q
what colour does calcium go on the flame test
A
brick red
7
Q
what colour does potassium go on the flame test
A
lilac
8
Q
how much nanometres is there in a millimetre
A
1 million
