Rutherford’s gold foil experiment showed several new things about the structure of the atom. Which results support the claim that the atom has a dense, positively charged core? Choose the TWO RESULTS THAT APPLY. (just tell me like 1 and 2 or 3 and 4) Some positive particles deflected at sharp angles.

Some negative particles deflected at sharp angles.

Most of the positive particles passed straight through the foil.

Some positive particles bounced back in the direction they came from.

a

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o