P1.1 Flashcards
1
Q
Approximately how much smaller is an electron than a hydrogen atom?
A
1 / 2000
2
Q
In science,what does massive mean?
A
Has lots of mass - e.g a nucleus could be considered massive
3
Q
Why was the gold foil experiment conducted in a vacuum
A
To prevent air molecules from absorbing alpha particles
4
Q
The atomic model developement stuff is mostly in C1 flashcards
A
jack edward
5
Q
In the cathode ray experiment, what does the fact that a pinwheel in the path of the cathode rays began to spin mean?
A
The cathode rays were very small mass
