Answer:
the answer is A i took this class and it was hard but once you know it you will be a master
Explanation:
Answer:
SA Node is where the surgeon needed access
U=30m/s
v=10m/s
t=4s
a=10-30/4
a=-5 m/second square
The correct option is A.
J.J Thompson proposed the plum model of atomic structure. The model states that the atom is a sphere of positively charged matter in which electrons are embedded.
Rutherford designed an experiment to verify the truth of this model. He set up a beam of alpha particles which are to be passed a thin gold foil. If the JJ model of atomic structure is correct, all of the alpha particles suppose to pass through the foil, but some of the alpha particles bounced back while those that passed through the foil emerged at different angles.
All form ions by losing electrons except oxygen.
