States of matter - P3 Flashcards
1
Q
An atom has a small, _________-charged nucleus surrounded by orbiting negatively-charged ________.
A
An atom has a small, positively-charged nucleus surrounded by orbiting negatively-charged electrons.
2
Q
Approximately how large are atoms?
A
Atoms have a radius of about 1 × 10-10 meters.
3
Q
How big is an atom’s nucleus compared to the entire atom?
A
If an atom was the size of Wembley Stadium, then the nucleus would be the size of a garden pea!
4
Q
What is the process of the following change in states?
Condensation) Melting) Freezing) Boiling) Sublimation)
A
Gas to liquid.
Solid to liquid.
Liquid to solid
Liquid to gas.
Solid straight to gas.
