– Shared the 1903 Nobel Prize in physics with Pierre and Marie Curie for his discovery of natural radioactivity.

3 POINTS

Robert Millikan (1868-1953)
– used oil drop experiment to measure the elementary electric charge as well as the electron mass and Avogadro’s number
– won the 1923 Nobel Prize in Physics

3 POINTS

Robert Millikan (1868-1953)
– used oil drop experiment to measure the elementary electric charge as well as the electron mass and Avogadro’s number
– won the 1923 Nobel Prize in Physics

2 POINTS

John Dalton (1766-1844)
Dalton’s Atomic Theory:
– Elements made up of atoms
– Atoms of same element are identical in size, mass, other attributes
– Atoms can’t be divided
– In chemical reactions, atoms are combined

2 POINTS

J. J. Thomson (1856-1940)
– an English physicist
– credited with the discovery and identification of electrons and the discovery of the first subatomic particle
– won the 1906 Nobel Prize in Physics.

4 POINTS

Ernest Rutherford (1871-1937)
– New Zealand-born British physicist
– father of nuclear physics; discovered radioactive half-life
– discovered proton; 1908 Nobel Prize in Chemistry
– rutherfordium (element 140) was named after him in 1997.

4 POINTS

William Crookes:(1832-1919)
– British Chemist and Physicists
– Discovery of the element thallium – 1861 discovered weight of element
– Invented the radiometer
– Discovered principles of Crooks radiometer-converts light radiation into rotary motion

5 POINTS

Henri Becquerel: (1852-1903)
– Discovered radioactivity
– Created experiment to show naturally occurring force (x rays)
– Won Noble Prize for Physics in 1903

3 POINTS

Henri Becquerel: (1852-1903)
– Discovered radioactivity
– Created experiment to show naturally occurring force (x rays)
– Won Noble Prize for Physics in 1903