Question 1
Elements A and Q form two compounds. The ratio (mass Q)/(mass A) for compound one is 0.271 and ratio (mass Q)/(mass A) for compound two is 0.362. If compound one has the chemical formula AQ, what is the chemical formula for compound two?
◦ A
2Q
3◦ AQ
2◦ A
3Q
4◦ AQ
3Question 2
The existence of electrons in atoms of all elements was demonstrated by
◦ Millikan's oil drop experiment.
◦ Rutherford's gold foil experiment.
◦ Thomson's cathode ray tube experiment.
◦ None of these