Parker POINTS

Home: USA
Awards: Nobel Prize in Physics, Hughes Medal, Franklin Medal, more
Notable Students: Harvey Fletcher
Quote: My idea of an educated person is one who can converse on a subject for more than two minutes

Parker POINTS

Uranium phosphoresces when exposed to light / These rays emitted by uranium cause gases to ionize – identified as radioactivity / Radioactive beta particles are due to high speed electrons leaving the nucleus of the atom

Parker POINTS

Home: France
Awards: Nobel Prize in Physics, Copley Medal, Rumford Medal
Notable Students: Marie Curie
Quote: Although the sun is irrelevant, and he misinterprets the role of phosphorescence, he has discovered the effect of radioactivity.

Parker POINTS

The two electrodes produce a greenish glow called fluorescence when they are connected to power / A beam of negative particles produces a shadow coming from the disk shaped electrode, called a cathode / This lead to scientists realizing that these particles of matter must be smaller than the atom.

Parker POINTS

Home: United Kingdom
Awards: Copley Medal, Elliot Cresson Medal
Notable Interest: Spiritualism
Quote: …The fixation of atmospheric nitrogen is one of the great discoveries, awaiting the genius of chemists.

4 POINTS

– Husband and wife French physical chemists
– Discovered the new radioactive isotopes prepared artificially
– Awarded with a Nobel Prize in 1935

Parker POINTS

Home: United Kingdom
Awards: Royal Medal
Notable Students: James Prescott Joule
Quote: This paper will no doubt be found interesting by those who take an interest in it.

Parker POINTS

Theory: The atom is the smallest particle of indivisible matter / Each element’s atoms are only identical to each other / Atoms of different elements combine in specific ratios to form compounds / In a chemical reaction, atoms are separated, rearranged, and recombined to form new compounds

Fontaine Chu, Krystal Xie and Ryan Yu POINTS

was an English physicist

discovered the electron in a high-vacuum cathode-ray tube

interpreted the deflection of the rays by electrically charged plates