history of the atom

Question 1

name 4 scientists involved in the discovery of atoms in order

Answer 1

dalton
thompson
rutherford
bohr

Question 2

what did dalton say the atom was?

Answer 2

a solid sphere

Question 3

what did thompson do?

Answer 3

discovered electrons

Question 4

what did Thompson’s model look like?

Answer 4

plum pudding model, sphere with positive and negative bits scattered throughout

Question 5

what did rutherford do?

Answer 5

the plum pudding experiment and figured out it had a solid centre

Question 6

what did bohr do?

Answer 6

developed the nuclear model of the atom

Question 7

overall what did rutherford, chadwick and bohr do?

Answer 7

R - positive centre
C - neutrons
B - modern nuclear model

Question 8

what did Rutherford’s plum pudding experiment entail?

Answer 8

he took a sheet of gold foil and a gun that fired particles and he shot them at the sheet of gold foil.

Question 9

what was the result of Rutherford’s experiment?

Answer 9

majority of the particles went straight through, but the odd one occasionally got deflected. this told him that it is likely that there is an overall buildup of positive in the middle with negative charges around the outside

Question 10

what did rutherford say most of the atom was made of?

Answer 10

empty space