Unit 8 - The Electron (scientists)

Question 1

isaac newton

Answer 1

1666 - separated white light with prison

Question 2

thomas young

Answer 2

1801 - performed double-slit experiment, verifying that light exhibits wave behavior

Question 3

james clark maxwell

Answer 3

1860 - develops a unified model of electricity and magnetism called electromagnetism; there is wave behavior called electromagnetic waves

Question 4

heinrich hertz

Answer 4

verified existence of maxwell’s electromagnetic waves; produced radio waves and determined they move at the speed of light; all waves became recognized as being electromagnetic radiations

Question 5

max plunk

Answer 5

investigated blackbody radiation (E = hv)

Question 6

FREQUENCY IS WHAT GREEK SYMBOL!!!

Answer 6

ν (NU!!)

Question 7

WAVELENGTH IS WHAT GREEN SYMBOL!!!

Answer 7

λ (LAMBDA!!!)

Question 8

albert einstein

Answer 8

photoelectric effect; light is composed of waves AND particles (PHOTONS!!)

Question 9

louis de broglie

Answer 9

1924 - developed the concept of matter waves. If light can behave like particles, then particles should be able to act like waves; small particles move with wave-like properties

Question 10

werner heisenberg

Answer 10

developed the uncertainty principle (impossible to know the location and momentum of an electron)

Question 11

erwin schrodinger

Answer 11

1926 - develops a wave that equation that describes with 90% probability, the locations of electrons in an atom; they exist in orbitals which hold 2e-