john atoms

Question 1

dalton (2things)

Answer 1

1. all substances are made up of atoms /combine in specific portions
2. Atoms of the same substance are identical and atoms of diff elements are different

Question 2

THOMPSOM MADDIE MODEL 3things

Answer 2

1. plum pudding
2. catho-ray to prove that negative and positive molecules exist
3. molecules CAN be cut into smaller pieces

Question 3

burr 2 thingz?

Answer 3

1. ELECTRONS TRAVEL in definite paths
2. necleus has positive and neutral particles surrounded by electrons orbiting in circular paths

Question 4

Schroder and H

Answer 4

electrons DO not travel in definite paths and travel AROUND nucleus in regions called clouds

Question 5

Ruthann?

Answer 5

1. FIRST TO SAY atoms have a densely packed nucleus and most mass is found in nucleus
2. gold foil experiment
3. electrons move in exmpy space

Question 6

democritus?

Answer 6

atom are UNCUTTABLE and are constantly moving and combining to create new sunstances

Question 7

MODERN THEORY

Answer 7

the atom has a nucleus containing protons and neutrons surrounded by a cloud that shows where electrons could be moving.