scientists + spontaneous radiation

Question 1

aristotle

Answer 1

4 elements

Question 2

democritus

Answer 2

discovered the atom

Question 3

dalton

Answer 3

atomic theory, 3 laws, the atom is represented as a solid/uncuttable ball

Question 4

mendeleev

Answer 4

made the first periodic table

Question 5

thomson

Answer 5

discovered the electron, plum pudding model, measured charge to mass ratio

Question 6

CRT (cathode ray tube) & Parts: cathode v. anode

Answer 6

measures charge to mass ratio
cathode: negative terminal
anode: positive terminal

Question 7

goldstein

Answer 7

uses CRT to discover that positive rays move in the opposite directions as negative rays

Question 8

rontgen (won NP)

Answer 8

discovered x-rays

Question 9

becquerel (won NP)

Answer 9

discovers spontaneous radiation (beta, alpha, gamma)

Question 10

curies (won NP)

Answer 10

discover 2 radioactive elements polonium and radium, start using X-rays in medicine

Question 11

milikan

Answer 11

did the oil drop experiment, measured the charge and mass of an electron

Question 12

rutherford

Answer 12

did the gold foil experiment, discovered the nucleus of the atom, separated radiation into 3 forms

Question 13

chadwick

Answer 13

discovered the neutron

Question 14

bohr

Answer 14

creates a planetary model of the orbit of electrons around the nucleus

Question 15

schrodinger

Answer 15

discovered the wave pattern for electrons that tells how electrons move
matter is both a wave and a particle

Question 16

de broglie

Answer 16

particles can be described as a wave and a particle