History

Question 1

Leucippus

Answer 1

Idea of atom

Question 2

Democrites

Answer 2

Student of Leucippus ; got lots of credit for idea of atoms

Question 3

Copernicus

Answer 3

Sun is stationary ; planets revolve around the sun

Question 4

Bacon

Answer 4

Scientific method (hypothesis, observation, experiment, re-evaluate hypothesis)

Question 5

Kepler

Answer 5

Planetary motion

Question 6

Galileo

Answer 6

Father of modern science ; sun is not stationary (disproving Copernicus)

Question 7

Boyle

Answer 7

Developed relationship between pressure and volume of gases

Question 8

Newton

Answer 8

Father of modern physics

Question 9

Dalton

Answer 9

Dalton’s atomic theory

Question 10

Dalton’s atomic theory

Answer 10

Law of conservation of mass, law of definite proportions, law of multiple proportions

Question 11

J.J. Thompson

Answer 11

Cathode rays ; plum pudding model ; atoms have positive and negative particles

Question 12

Plum pudding model

Answer 12

Thompson ; hypothesis for what the atom looks like

Question 13

Millikan

Answer 13

Charge to mass ratio ; oil drop experiment

Question 14

Becquerel

Answer 14

Uranic rays

Question 15

Curie

Answer 15

Post-doc of Becquerel ; discovered that other elements besides uranium have “uranic rays”

Question 16

Rutherford

Answer 16

Nuclear theory ; gold-foil experiment

Question 17

Rutherford Nuclear Theory

Answer 17

Positive charge and atom mass in nucleus ; empty space around nucleus when electrons are ; neutral elements have same number of protons and neutrons ; unaccounted mass is neutrons