Qualification > Sciences
IGCSE CHEMISTRY DOUBTS HERE !!!!
elemis:
Thats going to be hardwork :P
I'll do question 1 :P
Adzel:
please I really need them all... :(
elemis:
Nucleus has an overall +ve charge.
2
6
10
The spin will be in opposite directions i.e. one will spin anticlockwise and the other clockwise.
elemis:
Rutherford Experiment, right ? I'm sure you know this.... its in your textbook probably.
A surprise since 1 in 20000 alpha particles were deflected backwards causing scintillations.
Revised to include a nucleus which contains most of the mass of an atom; though this mass is concentrated in a VERY small area.
Ummm, I think Gold foil was used since gold is very malleable and could be made easily into a thin sheet of foil - remember Alpha particles have a very low penetration.
I guess exposure to radiation used in testing is the answer.
Adzel:
No. 2 I did it correctly... so carry on to Q3. plz
By the way Thanks for helping...
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