Marie & Pierre Curie

Physicists 1867-1934 and 1859-1906

Parker POINTS

Home: Poland/France
Awards: Marie: 2 Nobel Prizes (1 shared with Pierre & Henri Becquerel)
Notable Students: Irene Joliot-Curie (daughter)
Quote: Be less curious about people and more curious about ideas


Graphic by Eric Hamber Secondary

Discovery/Theory card

Artificial Radioactivity

Parker POINTS

Misinterpreting results lead to not discovering the neutron / Starting a new investigation by bombarding aluminum with helium alpha particles converted stable aluminum atoms into radioactive atoms – artificially creating radioactive atoms / Also produced radioactive nitrogen from boron and radioactive silicon from magnesium


Graphic by Eric Hamber Secondary

Irène & Frédéric Joliot-Curie

Physicists 1897-1956 and 1900-1958

Parker POINTS

Home: France
Awards: Nobel Prize in Chemistry
Notable Advisors: Marie and Pierre Curie (parents)
Quote: For my part, I consider science to be the paramount interest of my life.


Graphic by Eric Hamber Secondary

Discovery/Theory card

Planetary model of the atom

Parker POINTS

Investigating the deflection of alpha particles by atoms lead to rethinking the nature of the atom / Large-angle deflections could not be explained by the old model / The change in the path of some alpha particles is due to a small, densely packed centre of positive charge called the nucleus.


Graphic by Eric Hamber Secondary

Ernest Rutherford

Physicist 1871-1937

Parker POINTS

Home: New Zealand/United Kingdom
Awards: Nobel Prize in Chemistry, Copley Medal, more
Notable Advisors: JJ Thomson
Quote: All science is either physics or stamp collecting


Graphic by Eric Hamber Secondary

Discovery/Theory card

The Charge of an Electron

Parker POINTS

Measuring the charge of an electron by spraying oil drops in a chamber and exposing them to X rays, thereby making them positively or negatively charged. Negatively charged oil drops were moved upward by adjusting the electric charge and knowing the weight of the drop, the mass of the electron was discovered.


Graphic by Eric Hamber Secondary